some faves:

NPR Sound Money - http://www.npr.org/blogs/money/

WalkScore - http://www.walkscore.com/

RTA - http://tripsweb.rtachicago.com/

Couches available http://www.couchsurfing.org/login.html?auth_logout=1

Tweet, tweet http://twitter.com/

Reddit http://www.reddit.com/

Eh bien Le Monde : http://www.lemonde.fr/

TED: http://www.ted.com/

Money chimp: http://www.moneychimp.com

Data dot gov: http://www.data.gov/