Browse Happy The Web Standards Project has a new campaign to get people to shift away from IE. About a year ago or more, WaSP said they were moving on from the Browser Upgrade campaign but I guess with all the bugs in IE and no further support from MS, they've had to go back to trying to get more people to switch. At least now there's a good IE alternative in Firefox, similar interface but bug free and standards compliant.
Browser & Software Archives
OldVersion.com, old versions of a variety of programs, including browsers
SillyDog701 browser archive, including Netscape back to pre-v1 versions
evolt.org - Browser Archive
Skyzyx.com - Downloads standalone IE versions
Browsers - Multiple Explorers
Browser Information to verify version when using the standalone IEs because Help > About will show v6 regardless
Browser News
Browser News: Statistics find the browser stats you want to know
Form Bookmarklets includes the Remember Password bookmarklet to make sites like Yahoo allow your browser to save your password
Netcraft What's That Site Running Results, find out what OS a website server is running
QuirksMode a cornucopia of CSS info, hacks, bugs, plus Javascript stuff and browser info
WebStripper Offline Browser, download web sites and browse offline