Awesome Library
http://www.awesomelibrary.org/student5.html
Awesome Library for Teens

BJ Pinchbeck's Homework Helper
http://school.discovery.com/homeworkhelp/bjpinchbeck/

High School Hub
http://highschoolhub.org/hub/hub.cfm
Free online academic resources for high school students

Internet Public Library Pathfinders
http://www.ipl.org/ref/QUE/PF/
Guides to help you get started doing research on a particular topic, both online and at your local library. 

Big Dog's Grammar
http://aliscot.com/bigdog/
A Bare Bones Guide to English

BioChemHub
http://biochemhub.com
Biology and chemistry education center

Biography Megasites
http://www.multnomah.lib.or.us/lib/homework/biohc.html#grpbio

Chemistry 4 Kids
http://www.chem4kids.com/map.html

Cool Math
http://www.coolmath.com/home.htm
CoolMath for ages 13-100!

Famous American Trials
http://www.law.umkc.edu/faculty/projects/ftrials/ftrials.htm

50 States
http://www.50states.com/
50 States and Capitals

Guide to Grammar & Writing
http://webster.commnet.edu/grammar/index.htm
Guide to grammar and writing, including style manuals.

I Love Languages
http://www.june29.com/HLP/
Many language opportunities!

Dave's Guide to Speechwriting
http://www.davegustafson.com/speech
Gotta write a speech? This site will show you how!

MadSci Network
http://www.madsci.org/
The Laboratory that never sleeps … and your chance to "Ask a Scientist…"

Measure for Measure
http://www.wolinskyweb.net/measure.htm
A collection of measurement sites on the Web.

POTUS
http://www.ipl.org/ref/POTUS/
Presidents of the United States

Science Daily Magazine
http://www.sciencedaily.com/index.htm
Your link to the latest research news!

SparkNotes
http://www.sparknotes.com/
Free study guides written by Harvard students.

Visual Frog
http://www-itg.lbl.gov/ITG.hm.pg.docs/dissect/info.html
Visual frog dissection kit.