Google.com, take less time to load and i use to check my adsense account frequently so that a plus for me to have for home page.
Yahoo.com, I love their most popular news section. Their finance section is also excellent, I like their charts and business news. I also use Yahoo mail and IM. Google for searches of course, but that's built into firefox
a blank empty page in firefox and usually my stats as the first page to go to (bookmark in the personal toolbar folder)