AllExperts
Web's oldest question and answer site. Operated by About.com.
www.allexperts.com
Answerbag
Community-driven question and answer site.
www.answerbag.com
Ask a Librarian
Online reference service from the Library of Congress.
www.loc.gov/rr/askalib
Askville
Log in with your Amazon.com account to ask or answer questions.
askville.amazon.com
Answers.com
Semantic Q&A search by Answers.com.
www.answers.com
Brightstorm Answers
Study help platform for students. Focuses on PSAT, SAT, ACT, and math.
www.brightstorm.com/answers
Cramster
Active community providing online tutoring and answers to academic questions.
www.cramster.com
eHow
Database of how-to articles and videos.
www.ehow.com
Minti
Answers and advice articles for parents.
www.minti.com
WikiAnswers
Wiki-based Q&A service from Answers.com.
wiki.answers.com
wikiHow
Collaborative, wiki-based how-to manuals.
www.wikihow.com
Yahoo! Answers
Web's leading community-powered question and answer site.
answers.yahoo.com
