A little bored today so why not compile a list of web browsers?  There are some really good ones like Flock, Shiira, and Maxthan so if you're looking for a new browser here are your choices. There are more, but these are all free. If you were to ask which I use I would answer Flock and Opera. These are my personal favorites, but Flock is what I use most these days. Also, I was curious about older browsers so if you want an older browser, like Mosaic - YES MOSAIC! I found a archive site with all the old browers...

New

Orca                  Windows

OLD

Flock                  Windows, OS X, Linux
Safari                  Windows, OS X
Seamonkey        Windows, OS X, Linux
Firefox                Windows, OS X, Linux
Camino                OS X
Opera                  Windows, OS X, Linux
Shiira                   OS X
Wyzo                   Windows, OS X
Maxthon              Windows
Avant                   Windows
Sunrise                OS X
Phaseout             Windows
K-Meleon             Windows
Konqueror            Linux (KDE)
Epiphany              Linux (Gnome)
Galeon                 Linux (Gnome)
Amaya                 Windows, OS X, Linux
Chimera               Linux
Lynx                     Windows, OS X, Linux (Console text only browser)
Slimbrowser         Windows
KidRocket            Windows (Designed for children)
ShenzBrowser     Windows

Internet Explorer 7
Internet Explorer 8 beta

Note: Linux also implies Unix. Some browsers, like IE 7 and Safari work in Linux using Wine. Check Wine-Doors as they may appear for easy install.
Visit the browser archive where you can still download Mosaic!