Chem 1 Virtual Textbook
Useful online resource is this virtual textbook for general chemistry.
Basic chemistry help is available here for high school or college students.
Flash Cards 1.0
Flash Cards 1.0 allows users to create their own flashcards, and they can import data from other sources, including websites and text documents.
Global Change Master Directory
Use this site to locate global change research data from 1200 government agencies, universities, and other institutions worldwide.
Introduction to Chemistry
New students of chemistry may have trouble keeping their ionic and covalent bonds in order, so they should feel free to consult this helpful site.
Library of Congress: Science Reference Services
As one of the world's premier libraries, the Library of Congress has many staff members dedicated to helping members of the general public find the information they need. Along with providing in-person assistance in Washington, D.C., they also maintain this nifty site designed for persons looking for science reference material online.