Get to Know Common Twitter Terms
Like any new technology, Twitter has its own vocabulary. If you're just getting started with Twitter, here are some of the terms and lingo you and other twitterers might tweet around:
hashtag: Tagging an individual tweet by using a hash mark (#) in front of the tag word. For example, #twittermarketing. The hashtag allows Twitter users to search for a particular subject.
twalking: Sending a tweet via your mobile phone while you're walking.
retweet (RT): A repeated tweet, in which twitterers send a tweet that they've received to their followers. An RT is much like a forwarded e-mail. Twitterers can also use RTs when they reply to a particular tweet, allowing their Twitter stream to read the reply.
tweeting: The act of posting a message to Twitter in 140 characters or less.
TweetDeck: A desktop application that allows you to manage and monitor your Twitter feed.
tweetup: When Twitter users meet in person — a meet-up organized through Twitter.
Twitosphere: A community of Twitter users.
Twitter stream: A collections of tweets, often listed in chronological order.
Twitterati: The A-list twitterers, also called the cewebrities.

Web Design & Development Glossary
AJAX
asynchronous JavaScript and XML. A technique used in web page development.

Web Design & Development Glossary
API
application programming interface. A set of rules programs use to communicate with each other.

Web Design & Development Glossary
color stop
A special element that indicates a color to be added to a gradient.

Web Design & Development Glossary
FTP
File Transfer Protocol. A network protocol useful for transferring files in a client-server relationship.

Web Design & Development Glossary
HTML
HyperText Markup Language. The predominant language for building web pages.

Web Design & Development Glossary
HTTP
HyperText Transfer Protocol. The primary networking language for the Internet.

Web Design & Development Glossary
PHP
PHP Hypertext Processor. A scripting language that works well within HTML.

Web Design & Development Glossary
socket
A technology that allows remote computers to maintain a persistent connection in order to communicate with each other.

Web Design & Development Glossary
sprite
An graphic object on a web page that will be manipulated in real time.

Web Design & Development Glossary
SQL
Structured Query Language. A programming language useful in managing relational databases.

Web Design & Development Glossary
stateless protocol
An Internet procedure that completely breaks the connection between the client and the server after a transaction, meaning that the next transaction will require an entirely new connection.

Web Design & Development Glossary
Telnet
A network protocol useful in interactive, text-oriented communications.

Web Design & Development Glossary
W3C
World Wide Web Consortium. The organization that sets international standards for the World Wide Web.