I don’t mean one’s personal web site, but the web page that your browser goes to when it is opened. Mine is set for, of course, the Straight Dope. How about you?
Straight Dope at home.
At work, The Department of Entomology at Rutgers. I’m such a wild woman.
IWon.com, but it’s cheesy. I’m looking for a good news/entertainment page to replace it that doesn’t take forever to download.
The Anipike.
SDMB at home, company’s intranet at work. Hey, it makes me look devoted. 
(it’s my homepage)
Here’s where I work. This is what the homepages on the office machines are set to. I designed that website myself.
At home, I have it set on the latest webpage I’ve designed, all addressed locally i.e. on my machine, not the live site. The current one is not allowed to be posted on the boards (it’s against policy) 
Three of us share this computer, so we picked a neutral spot, Hotmail, where we all have an account. Not my first pick, but… shrugs