Science Fiction:

Cinefantastique!
airlock alpha
Atomic Rockets
SciFi Pulse
Starship Dimensions
Ex Astris Scientia
TV Tropes-speculative fiction
TelevisionTunes.com
The Heinlein Archives
Internet Speculative Fiction Database
Philip K. Dick Fan Site
Science Fiction Studies
SFWA
Tor.com

Authors:

Isaac Asimov
Charlie’s Diary
David Brin
Kim Stanley Robinson
Political Science
fivethirtyeight
Maps of War
APSA
Avalon Project
Brookings Institute
The Hamilton Project
Hoover Institution
Mapping Militants
History News Network
Political Science Rumors
Social Science Research Network
RangeVoting.org
Washington Center for Equitable Growth
Religion
aderents.com
America’s Public Bible
Bible Hub
Auburn
Patheos
Pangea Blog
sacredtexts.com
Skeptic’s Annotated Bible
Politics
Progressive sites:
AlterNet
American Rights at Work
Crooks and Liars
Forward Progressives
People for the American Way
ProPublica
ThinkProgress
Moderate sites:
The Moderate Voice
Prairie Weather
Conservative sites:
The XX Committee
George Will
William Kristol
RedState
Mises Institute
The American Conservative
Socialist:

Jacobin

Libertarian:

reason.com
Bleeding Heart Libertarians
Non-Partisan
Digital Democracy
FactCheck.org
U.S. Congress Votes
On The Issues
MapLight
Vote411
Politics1
National Popular Vote
Sunlight Foundation

Activist

Issue One
No Labels

Humanities

In the Middle

Literature and Media

Overthinking It
goodreads
new books network
Purdue Online Writing Lab

Society

Salon
Slate
The Atlantic

Science and Technology

ars technica
Big Picture Science
MacRumors
KrebsonSecurity
PC Mag
Quanta
slashdot
supersite for windows
Threat Post
Tom’s Hardware
preposterous universe
Centauri Dreams
Future of Life Institute