My supposition is that they got the link in their webmail from a friend and followed it. I don't know. Other people get here from links to this page posted at various other discussion boards around the net. Still others get here via one of the major search engines. Most people use Microsoft Internet Explorer, and while most people are on Windows95 or 98, there are also plenty of Mac, Unix, WebTV and Linux users.
Traffic falls way off on weekends and further still on holidays.
I suspect a large number of people visit the page on their work computers.