Arts/History:
- American History
- Arts
- Classical Studies
- Dancing
- Ethics
- Fine Arts
- History
- Humanities
- Live Theatre
- Logic
- Performing Arts
- Philosophy
- Business
- Capitalism
- Consumer Info
- Computer Hardware
- Computers
- Cyberculture
- Internet
- Internet Tools
- Multimedia
- Online Games
- Software
- StumbleUpon
- Video Games
- Web Development
- Weblogs
- Health/Fitness
- Medical Science
- Self Improvement
- Board Games
- Card Games
- Chess
- Collecting
- Humor
- Poker
- Roleplaying Games
- Satire
- Family
- Food/Cooking
- Kids
- Married Life
- Parenting
- Pregnancy/Birth
- Teen Life
- Alternative News
- Animation
- Books
- Comic Books
- Fantasy Books
- Journalism
- Poetry
- Radio Broadcasts
- Science Fiction
- Shakespeare
- Television
- Writing
- Classic Films
- Music
- Movies
Outdoors:
- Agriculture
- Animals
- Nature
- Outdoors
- USA
- Athiest-Agnostic
- Religion
- Spirituality
- Alternative Energy
- Anthropology
- Astronomy
- Aviation/Aerospace
- Biology
- Chemistry
- Civil Engineering
- Cognitive Science
- Ecology
- Economics
- Environment
- Gadgets
- Geography
- Geoscience
- Linguistics
- Mathematics
- Meteorology
- Physics
- Physiology
- Political Science
- Psychology
- Science/Tech
- Sociology
- Space Exploration
- Trains/Railroads
- Transportation
- Activism
- Anarchism
- Biographies
- Career Planning
- Communism
- Conservative Politics
- Counterculture
- Culture/Ethnicity
- Dating Tips
- Feminism
- Government
- Hedonism
- Int'l Development
- Law
- Liberal Politics
- Liberties/Rights
- Men's Issues
- Military
- News (General)
- Personal Sites
- Politics
- Socialism
- University/College
- American Football
- Baseball
- Basketball
- Golf
- Hockey
- Martial Arts
- Motor Sports
- Soccer
- Sports (General)
- Tennis
Of course, if the alternative is an ad-overloaded page trying to further or start an internet meme, I'm not sure it's much of an improvement...