Islam oppresses women:

 The image of the typical Muslim woman wearing the veil and forced to stay home and forbidden to drive is all too common  in most peoples thoughts. Although some Muslim countries may  have laws that oppress women, this should not be seen as coming  from Islam.  Many of these countries do not rule by  any kind of Shari'ah (Islamic law) and introduce their own cultural standpoints on the issue of  gender equity.
Islam on the other hand gives men and women different roles and equity between the two  is laid down in the Quran and the example of the Prophet (peace be upon him). Islam sees a woman, whether   single or married, as an individual in her own right, with the right to own and dispose of her property  and earnings.  A marriage gift is given by the groom to the bride for her own personal use, and  she keeps her own family name rather than taking her husband's. Both men and women are expected to dress in a way which is modest and dignified. The Messenger of God (peace be upon him) said: "The most perfect in faith amongst  believers is he who is best in manner and kindest to his wife."
Violence of any kind towards  women and forcing them against their will for anything is not allowed. A Muslim marriage is a simple, legal agreement in which either partner is free to include  conditions.
Marriage customs thus vary widely from country to country.  Divorce is not common,  although it is acceptable as a last resort.  According to Islam, a Muslim girl cannot be forced to  marry against her will: her parents simply suggest young men they think may be suitable.

Muslims worship a different God:

Allah is simply the arabic word for God. Allah for Muslims is  the greatest and most inclusive of the Names of God, it is an arabic word of rich meaning, denoting the one and only God and ascribing no partners to Him. It is exactly the same word which the Jews, in Hebrew, use for God (eloh), the word which Jesus Christ used in Aramaic when he prayed to God. God has an identical name in Judaism, Christianity, and Islam; Allah is the same God worshiped by Muslims, Christians and Jews.  Muslims believe that Allah's sovereignty is to be acknowledged in worship and in the pledge to obey His teaching and commandments, conveyed through His messengers and prophets who were sent at various times and in many places throughout history.

Islam was spread by the sword and is intolerant of other faiths:

Many social studies textbooks for students show the image of an Arab horseman carrying  a sword in one hand and the Quran in the other conquering and forcibly converting. This, though, is not a correct portrayal of history.  Islam has always given respect and  freedom of religion to all faiths. The Quran says: "God forbids you not, with regards to those who fight you not for [your]  faith nor drive you out of your homes, from dealing kindly and justly with them; for God loveth those  who are just. 60:8) Freedom of religion is laid down in the Quran itself: "There is no compulsion (or coercion)  in the religion (Islam).  The right direction is distinctly clear from error". (2:256) Christian missionary, T.W. Arnold had this opinion on his study of the question
of the  spread of Islam: ".. of any organized attempt to force the acceptance of Islam on the non-Muslim  population, or of any systematic persecution intended to stamp out the Christian religion, we hear  nothing. Had the caliphs chosen to adopt either course of action, they might have swept away  Christianity as easily as Ferdinand and Isabella drove Islam out of Spain, or Louis XIV made Protestanism ..."
It is a function of Islamic law to protect the privileged status of minorities, and this is why  non-Muslim places of worship have flourished all over the Islamic world.  History provides many examples of Muslim tolerance towards other faiths: when the caliph Omar entered Jerusalem in the  year 634, Islam granted freedom of worship to all religious communities in the city.   Proclaiming to the inhabitants that their lives, and property were safe, and that their places of  worship would never be taken from them, he asked the Christian patriarch Sophronius to  accompany him on a visit to all the holy places.  Islamic law also permits non-Muslim minorities to set up their own courts, which  implement family laws drawn up by the minorities themselves. The life and property of all citizens in an Islamic state are considered sacred whether the  person is Muslim or not.
Racism is not a part of Islam, the Quran speaks only of human equality and how all  peoples are equal in the sight of God.   "O mankind! We created you from a single soul, male and  female, and made you into nations and tribes, so that you may come to know one another.  Truly, the most honored of you in God's sight is the greatest of you in piety.  God is All-Knowing, All- Aware. (49:13)

All Muslims are Arabs: 

The Muslim population of the world is around 1.4 billion.  1 out of 4 people in the world is a  Muslim. Islam is the fastest growing religion in the World and North America.  They are a vast range of races, nationalities, and cultures from around the globe--from the Phillipines to Nigeria--they are united by their common Islamic faith. Only about 18% live  in the  Arab world and the largest Muslim community is in Indonesia.  Most Muslims live east of Pakistan.   30% of Muslims live in the Indian subcontinent, 20% in Sub-Saharan Africa, 17% in Southeast  Asia, 18% in the Arab world, and 10% in the Soviet Union and China.  Turkey, Iran and  Afghanistan make up 10% of the non-Arab Middle East.  Although there are Muslim minorities in  almost every area, including Latin America and Australia, they are most numerous in Russia and  its newly independent states, India and central Africa.  There are about 8 million Muslims in the  United States

The Nation of Islam is a Muslim group:

Islam and the so called  "Nation of Islam'" are two different religions.  Muslims consider  this group to be just one of many cults using the name of Islam for their own gain.  The only thing  common between them is the jargon, the language used by both.  "The Nation of Islam" is a  misnomer; this religion should be called Farrakhanism, after the name of its propogator, Louis  Farrakhan.
Islam and Farakhanism differ in many fundamental ways. For example, Farakhan followers  believe in racism and that the 'black man' was the original man and therefore superior, while in  Islam there is no racism and everyone is considered equal in the sight of God, the only difference  being in one's piety. There are many other theological examples that show the 'Nation's teachings  have little to do with true Islam.    There are many groups in America who claim to represent Islam and call their adherents  Muslims.
Any serious student of Islam has a duty to investigate  and find the true Islam.  The only  two authentic sources which bind every Muslim are 1. the Quran and 2. authentic or sound Hadith. Any teachings under the label of "Islam" which contradict or at variance with the direct understanding of fundamental beliefs and practices of Islam form the Quran and authentic Hadith  should be rejected and such a religion should be considered a Pseudo-Islamic Cult. In America  there are many pseudo-Islamic cults, Farrakhanism being one of them.  An honest attitude on the  part of such cults should be not to call themselves Muslims and their religion Islam. such an  example of honesty is Bahaism which is an off-shoot of Islam but Bahais do not call
themselves  Muslims nor their religion, Islam.  In fact Bahaism is not Islam just as Farrakhanism is not Islam.

All Muslim men marry four wives:

The religion of Islam was revealed for all societies and all times and so accommodates  widely differing social requirements.  Circumstances may warrant the taking of another wife but the  right is granted, according to the Quran, only on condition that the husband is scrupulously fair. No woman can be forced into this kind of marriage if they do not wish it, and they also have the  right to exclude it in their marriage contract.
Polygamy is neither mandatory, nor encouraged, but  merely permitted. Images of "sheikhs with harems" are not consistent with Islam, as a man is  only allowed at most four wives only if he can fulfill the stringent conditions of treating each fairly  and providing each with separate housing etc.  Permission to practice polygamy is not associated  with mere satisfaction of passion.  It is rather associated with compassion toward widows and  orphans. It was the Quran that limited and put conditions on the practice of polygamy
among the  Arabs, who had as many as ten or more wives and considered them "property".  It is both honest and accurate to say that it is Islam which regulated this practice, limited  it, made it more humane, and instituted equal rights and status for all wives. What the Qur'anic  decrees amount to, taken together is discouragement of polygamy unless necessity for it exists. It is also evident that the general rule in Islam is monogamy and not polygamy. It is a very  tiny percentage of Muslims that practice it over the world. However, permission to practice limited  polygamy is only consistent with Islam's realistic view of the nature of man and woman and of  various social needs, problems and cultural variations. The question is, however far more than the inherent flexibility of Islam; it also is the frank  and straightforward approach of Islam in dealing with practical problems.  Rather than requiring  hypocritical
and superficial compliance, Islam delves deeper into the problems of individuals and  societies, and provides for legitimate and clean solutions which are far more beneficial than would  be the case if they were ignored. There is no doubt that the second wife legally married and treated  kindly is better off than a mistress without any legal rights or expermanence.

Muslims are a barbaric, backwards people:

 Among the reasons for the rapid and peaceful spread of Islam was the simplicity of its  doctrine-Islam calls for faith in only one God worthy of worship.  It also repeatedly instructs man to  use his powers of intelligence and observation. Within a few years, great civilizations and universities were flourishing, for according to the Prophet (pbuh), 'seeking knowledge is an obligation for every Muslim man and woman'.
The  synthesis of Eastern and Western ideas and of new thought with old, brought about great  advances in medicine, mathematics, physics, astronomy, geography, architecture, art, literature,  and history.
Many crucial systems such as algebra, the Arabic numerals, and also the concept of  the zero (vital to the advancement of mathematics), were transmitted to medieval Europe from  Islam.  Sophisticated instruments which were to make possible the European voyages of discovery  were developed, including the astrolabe, the quadrant and good navigational maps.

Muhammad was the founder of Islam and Muslims worship him:

Muhammad(pbuh) was born in Mecca in the year 570.   Since his father died before his  birth, and his mother shortly afterwards, he was raised by his uncle from the respected tribe of  Quraysh.  As he grew up, he became known for his truthfulness, generosity and sincerity, so that  he was sought after for his ability to arbitrate in disputes.  The historians describe him as calm and  meditative. Muhammad (pbuh) was of a deeply religious nature, and had long detested the decadence  of his society.
It became his habit to meditate from time to time in the Cave of Hira near Mecca. At the age of 40, while engaged in a meditative retreat, Muhammad(pbuh) received his first  revelation from God through the Angel Gabriel.  This revelation, which continued for 23 years is known as the Quran. As soon as he began to recite the words he heard from Gabriel, and to preach the truth  which God had revealed to him, he and his small group of followers suffered bitter persecution,  which grew so fierce that in the year 622 God gave them the command to emigrate.
This event,  the Hijra 'migration', in which they left Mecca for the city of Medina, marks the beginning of the  Muslim calendar.  After several years, the Prophet and his followers were able to return to Mecca, where they  forgave their enemies and established Islam definitively. Before the Prophet saw dies at the age of  63, the greater part of Arabia was Muslim, and within a century of his death Islam had spread to  Spain in the West and as far East as China. He died with less than 5 possessions to his name.
While Muhammad(pbuh) was chosen to deliver the message, he is not considered the  "founder" of Islam, since Muslims consider Islam to be the same divine guidance sent to all  peoples before.  Muslims believe
all the prophets from Adam, Noah, Moses, Jesus etc. were all  sent with divine guidance for their peoples.  Every prophet was sent to his own people, but  Muhammad(pbuh) was sent to all of mankind.  Muhammad
is the last and final messenger  sent to deliver the message of Islam. Muslims revere and honor him (pbuh) for all he went through  and his dedication, but they do not worship him.  "O Prophet, verily We have sent you as a  witness and a bearer of glad tidings and a warner and as one who invites unto God by His leave  and as an illuminating lamp."(33:45-6)

Muslims don't believe in Jesus or any other prophets:

Muslims respect and revere Jesus, upon him be peace, and await his Second Coming.   They consider him one of the greatest of God's messengers to mankind.  A Muslim never refers to  him simply as 'Jesus', but always adds the phrase 'upon him be peace' (abbreviated as (u) here).   The Quran confirms his virgin birth (a chapter of the Quran is entitled 'Mary'), and Mary is  considered the purest woman in all creation.  The Quran describes the Annunciation as follows:
"Behold!" the Angel said, "God has chosen you, and purified you, and chosen you above  the women of all nations.  O Mary, God gives you good news of a word from Him whose name  shall be the Messiah, Jesus son of Mary, honored in this world and the Hereafter, and one of those brought near to God.  He shall speak to the people from his cradle and in maturity, and shall be of  the righteous." She said: "O my Lord!
How shall I have a son when no man has touched me?" He said:  "Even so; God creates what He will.  When He decrees a thing, He says to it, "Be!" and it is"  (Quran 3:42-47)
Jesus (u) was born miraculously through the same power which had brought Adam (u) into  being without a father: "Truly, the likeness of Jesus with God is as the likeness of Adam.  He created him of  dust, and then said to him, 'Be!' and he was." (3:59) During his prophetic mission Jesus (u) performed many miracles. The Quran tells us that  he said: " I have come to you with a sign from your Lord:  I make for you out of clay, as it were, the  figure of a bird, and breathe into it and it becomes a bird by God's leave.  And I heal the blind, and  the lepers, and I raise the dead by God's leave." (3:49) Neither Muhammad (pbuh) not Jesus (u) came to change the basic doctrine of the brief in One God brought by earlier prophets, but to confirm and renew it.
In the Quran Jesus (u) is  reported as saying that he came: "To attest the law which was before me.  And  to make lawful to you part of what was  forbidden you; I have come to you with a sign from your Lord, so fear God and obey Me. (3:50) The Prophet Muhammad(pbuh) said: "Whoever believes there is no god but God, alone  without partner, that Muhammad(pbuh) is His messenger, that Jesus is the servant and messenger  of God, His word breathed into Mary and a spirit emanating from Him, and that Paradise and Hell  are true, shall be received by God into Heaven. "(Hadith related by Bukhari).