Entertainment

Books

• Gutenberg
• Google Books
• UPenn Online Books

Games

• Kongregate
• Sudoku
• Get High Now

Humor

• Go Comics
• The Onion
• Comedy Central

Leisure

Photography

• Picasa
• Flickr

Recreation

• Recreation.gov
• USGS Recreation

Sports

• Bleacher Report

Travel

• Flight Tracker
• Expedia
• Trip Advisor
• Alternative Lodging

Household

Personal Finance

• Every Dollar Matters
• Yahoo Finance
• Stock Charts
• IRS

Food/Nutrition

• CalorieKing
• Food Network
• Open Source Food
• Nutrition.gov
• Summer Tomato

Health/Fitness

• Mayo Clinic
• Health.com

For Kids

• Wonderopolis

Shopping

• Groupon
• Yelp
• Etsy
• eBay

Information

News

• Democracy Now
• The Daily Beast
• CNN
• MSNBC
• The Guardian
• AlterNet
• Afrigadget

Reference

• Google Maps
• Wikipedia
• Urban Dictionary
• refdesk.com

Education

• Khan Academy
• TED
• Free Programming Curriculum

Misc

• Big Think
• Get Human
• Digital Vaults

Government

• USA.gov

Legal

• NOLO

Religion

• Belief.net
• Sacred Texts