Friends:

Sam's site
Danny's site

In Chicago:

Old Town School of Folk Music (banjo!)
eCross Culture Center (Chinese classes)
Hot Tix (half-price theatre tickets)
Yoga Now

Essential Tools:

Gmaps Pedometer (for walking)
Man in Seat 61 (world train guide)
Emporis (info about buildings)
Merriam-Webster (for audio pronunciations)
Craigslist+Gmaps (apartment finding)

Audio/Video:

This American Life (radio)
The Charlie Rose Show
The Daily Show
National Public Radio
Pandora

News:

The New York Times
The Economist
Arts & Letters Daily
Wired
The Chronicle of Higher Education
The Wall Street Journal
BBC News
The Atlantic
The Onion (satire)

Other stuff:

Dilbert
Project Gutenberg (17,000 classic books)

Chinese Language:

Dictionaries:
SunRain
Monash Wushu

Other Chinese things of interest:
Dongfang Chinese Education Institute
Hong Kong University of Science & Technology
Shanghai Jiao Tong University
Purdue Chinese Department