Here's some AP Stylebook entries you should be familiar with regarding technology.

cell phone

Composition titles

Domain names

DOS

e-mail

e-book

e-commerce

e-business

GIF

gigabyte

IP address

Internet

IT

Login, logon, logoff

offline

online

PDF

URL

Software titles

Web

website

Web page, webcam, webcast, webmaster

The Associated Press announced it is changing its style on Web site to website to reflect increasingly common usage. It is effective at 3 a.m. EDT Saturday, April 16.
A new entry on website has been added to the AP Stylebook Online and will be included in the updated text version, the 2010 AP Stylebook, which will be published next month.

The entry says:
website: A location on the World Wide Web that maintains one or more pages at a specific address. Also, webcam, webcast and webmaster. But as a short form and in terms with separate words, the Web, Web page and Web feed.

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