Wikipedia has a lot of information.

This is the best of it ...

BREAKING NEWS:
Spammers be damned! Frequent users may have noticed an abundance of spam on the site lately. Well, I have added CAPTCHA challenges to posting and log-in so spammers should have a little more trouble hawking Cialis on my site.

This reminds me of a great 6 word story à la Hemingway. CAPTCHA ruled discriminatory. Robot awarded £200,000.

This is a beta version.

Currently it is somewhat difficult to add an image to a new post.

The post understands html though so...

until I have upgraded the posting interface please include the following line of code:
<img src="THE LINK TO YOUR IMAGE" />

Economics
Freakonomics blog
Mankiw's blog
Marginal Revolution
Beck-Posner blog

News for nerds
Y Combinator News
Slashdot

Music
Mix Riot Archive
Max's Super Groovy Music Video Spectacular

Data / Markets
InTrade
Zillow
Swivel

Funny
New Math
Indexed
Perry Bible Fellowship

Obviously
Wikipedia

Other
Wolfram Alpha ... better than Google?
List Universe
TED
Midtown Lunch
A Smart Bear blog
SkyScanner