The Encyclopedia of Computer Security
Go to "Dictionary" to find the meanings of all sorts of words and terms relating to computer security! Other features include a "Virus Information Center".

Net Lingo
Find the meanings of words, acronyms and phrases used in online chat, e-mail and newsgroup postings.

Webopedia
Use this online computer dictionary/encyclopedia to find the meanings of Internet and technology terms, and more. Links are often given to sources of further information; searchable by keyword and subject.

Whatis
Find clear and concise definitions and explanations of computer-related terms here! This web site also contains info about the Internet and how it works.