www.gmail.com
www.hotmail.com
webmail.ualberta.ca
(hey, a guy's gotta keep track of his alter-egos)
fse.luniz.org
www.bluelight.ru (harm reduction community)
antwrp.gsfc.nasa.gov/apod/archivepix.html (astronomy picture of the day)
www.instructables.com (awesome DIY website)
www.foodtv.ca (I'm a food geek)
webcomics:
http://www.webcomicsnation.com/spike/Templar/series.php (Templar, Arizona-- defies classification)
www.uglyhill.com (Ugly Hill-- silly 3-panel goodness)
www.octopuspie.com (pro/anti-hipster goodness)
www.boltcity.com (home of Copper, among many other artful webcomics)
xkcd.com (xkcd-- geek goodness)
www.angryflower.com (past-its-prime, but I still read it for nostalgia's sake)
www.platinumgrit.com (awesome fantasy-ish comic)
www.americanelf.com (daily diary comic, a pretty good read)
www.cbc.ca (radio, news, etc.)

Granted, most of these are on RSS feeds, but still...