Fundamental Buddhism Explained
Explicit explanation of fundamental Buddhism based on the Pali Canon, recognized by Buddhist scholars as the oldest surviving written record of what the Buddha said and taught.
http://www.fundamentalbuddhism.com

An Overview of Buddhism
A brief introduction to Buddhism. How Buddhists perceive the world, the four main teachings of the Buddha, the Buddhist view of the self, the relationship between this self and the various ways in which it responds to the world, the Buddhist path and the final goal.
http://www.ncf.carleton.ca/dharma/introduction/overview.html

Common American Misconceptions About Buddhism
Reincarnation, prayer, and paganism.
http://www.livingdharma.org/Misconceptions.html

12 Principles of Buddhism
By Christmas Humphreys, founder and president of the Buddhist Society of London. These principles express a common ground for all schools of Buddhism and have been approved by the leading sects throughout the world as a basis for World Buddhism.
http://www.budtempchi.org/12prin.html

What Is Buddhism?
Excellent introduction to Buddhism provided by Mahidol University, Thailand.
http://www.mahidol.ac.th/budsir/buddhism.htm

Buddhism 2001
Introduction to Buddhist philosophy and practice.
http://www.geocities.com/buddhism2001/

The History and Philosophy of Buddhism
A simple, yet comprehensive, non-sectarian introduction to Buddhist history, philosophy and culture.
http://www.buddha101.com

Very Brief Overview of Buddhism
Buddhism does not believe in God. In Buddhist teaching, there is no aggressive promotion of Buddhism or strong rejection of other religions.
http://www.index-china.com/index-english/Buddha%20and%20Buddhaism.htm

What Buddhists Believe
Online version of a book by K.Sri Dhammananda giving an extensive explanation of basic Buddhist thought from a Theravadan Buddhist perspective.
http://www.sinc.sunysb.edu/Clubs/buddhism/dhammananda/main.htm

The Word Of The Buddha
Online version of the classic introduction to Buddhism published in 1906 by the Buddhist Publication Society. The book covers the basic principles of Buddhism, selected from the five great collections of discourses which form the Sutta-Pitaka.
http://www.enabling.org/ia/vipassana/Archive/N/Nyanatiloka/WOB/wobTOC.htm

Questions & Answers on Buddhism
Answers to common questions about Buddhism.
http://www.serve.com/cmtan/buddhism/qna.html

Basic Points Unifying Theravada and Mahayana Buddhism
Approved by the World Buddhist Sangha Council in 1966.
http://www.serve.com/cmtan/buddhism/Misc/unify.html

Basic Buddhist Beliefs
http://www.dragonflower.org/commonties.html

SoYouWanna convert to Buddhism?
A light-hearted overview of what it means to be a Buddhist. Written from a relatively objective perspective by the editors of SoYouWanna.com.
http://www.soyouwanna.com/site/syws/buddhism/buddhism.html

B is for Buddhism
Information for beginners.
http://bisforbuddhism.freeservers.com

Resources for the Study of Buddhism
Site contains links to both general Buddhist resources and specialized materials on Zen, Chinese Buddhism, Yogacara Buddhism, and various Buddhist scriptures (sutras/suttas).
http://userwww.sfsu.edu/~rone/Buddhism/Buddhism.htm

The Four Noble Truths
Explanation of the Four Noble Truths of Buddhism.
http://www.nyimc.org/articles/truths.htm

Searching for Buddha
Provides a simple introduction to Buddhism, answering the most common questions by curious people.
http://www.searchingforbuddha.com/

About Buddhists
An introduction from a New Kadampa Buddhism perspective to Buddhist religion, philosophy, teachings, meditation, and practice.
http://aboutbuddhists.org/

Buddhism As A Religion
Is Buddhism a religion? An extensive analysis of Buddhism and its religious and non-religious aspects.
http://home.pacific.net.sg/~bvs/religion1.htm

The Four Noble Truths
Basic exposition done in a graphically lyrical style.
http://www.4truths.com/

An Introduction to Buddhism
To do no evil; To cultivate good; To purify one's mind: This is the teaching of the Buddhas. --The Dhammapada
http://webspace.ship.edu/cgboer/buddhaintro.html