The webmaster does for free. We can count the number of browsers on one hand. Maybe we will see more once Mac OS X comes out. Netscape Communicator 4.75 Son of Mosaic. The BIG DOG at one time.
Communicator is like an integrated works package.
Browser, web page publisher, e-mail client and news client are some of the parts of Communicator. Some folks like the integrated package. Netscape has been promising something great and small in size with their new gecko renderer. Microsoft has the largest group of Mac programmers outside of Apple itself. Where as Netscape has dropped the ball on the Mac client, Microsoft has integrated the use of Apple's Java MRJ and Colorsync, etc.