Homework Help Online

Answers.com - the web's most trusted destination for Questions & Answers
http://www.answers.com/

Ask Dr. Math - Students from kindergarten through high school can scan math questions to see if their own have already been answered, or they can ask Dr. Math, which is actually a group of math whizzes from colleges around the country.
http://mathforum.com/dr.math

Encyclopedias - These encyclopedias are free of charge.

http://www.encyclopedia.com

http://www.britannica.com - Encyclopedia Britannica

http://en.wikipedia.org - Wikipedia

Carnegie Library of Pittsburgh: Kid's Home - Online help from real tutors or search their database.
http://www.carnegielibrary.org/kids/

Homework Help - This site has over 625 links on subjects that range from art to the Internet. It is run by a thirteen year old middle school student and his father. Together they answer over forty questions a day from students around the world. http://school.discoveryeducation.com/homeworkhelp/homework_help_home.html

Homework Spot - Sections for elementary, middle school and high school. Has a current events section and a section to visit museums and libraries.
http://www.homeworkspot.com/

Homework/Study Tips - This site offers a comprehensive list of annotated links which are best suited for older elementary school students or middle school kids.
http://homeworktips.about.com/?once=true&

Khan Academy - A library of over 3,000 videos covering everything from arithmetic to physics, fincance, and history and 317 practic exercises. There are videos for all grade levels.
http://www.khanacademy.org/

SOS Math - This site provides help with math homework.
http://www.sosmath.com

Ask-A-Geologist - Send your question relating to geology.
http://walrus.wr.usgs.gov/ask-a-geologist/