blogiseverything.com has a great article on the name origin for some of the top IT companies.
Did you know that Apache got its name from "A PAtCHy" due to the number of patches written and applied for NCSA's http daemon?
Or did you know that Hotmail was initialy written as "HoTMaiL" to promote the letters HTML, the scripted language used to write web pages?
Or even did you know that Oracle was the codename of a CIA (yes, spy stuff) project carried out by the company's founders?
Well, you'll find a lot of these including Intel, Adobe, Cisco, Google, Microsoft, Motorola, Red Hat, Xerox and Yahoo. You're just one click away :P