Netscape:

Although the name is familiar to most internet users, the use of Netscape has now become so insignificant that it is not cost effective to modify sites to allow Netscape users to view then correctly. Netscape has not been updated since being acquired by AOL - and AOL use Internet Explorer! Netscape does not render the pages correctly. Those wishing to use a non Microsoft product should consider Mozilla Firefox which is superior to Internet Explorer in a number of ways. Dial up users will find tabbed browsing particularly useful. Best of all, it's free.