Twitter

Twitter is a social network used by millions of people, and thousands more are signing up every day to send short messages to groups of friends.
Service that enables its users to send and read messages known as tweets. Tweets are text-based posts of up to 140 characters displayed on the author's profile page and delivered to the author's subscribers who are known as followers. Senders can restrict delivery to those in their circle of friends or, by default, allow open access. Twitter is an interesting concept that was created by Jack Dorsey and became an incorporated company in May of 2007. Since then, it has grown to be an Internet phenomenon, often featured on news channels on the web. It works much the same way as a blog, only with the character limit. Once a Twitter is posted on the website, people are able to easily see what other people are doing. Individuals can, in turn, let others know what is going on with them as well.
The concept of Twitter relies on messaging services, whether it uses a cell phone, instant messager, such as Yahoo Messenger or MSN Messenger, or through specific websites. Twitter only asks one question, “What are you doing?” As long as an answer is 140 characters or less, it is possible for thousands of people to see the answer immediately. Don't overdo it with the update, keep them to a minimum to avoid annoying people. By sending too many messages in a day (or week or month), it runs the risk of individuals beginning to remove people from their list. Consider sending one message a day or setting up different groups, so as to target specific updates to those who are really interested in the messages sent. By setting up groups, personal messages will go to only those it is intended for as well.
Unfortunately, Twitter has also become very popular with Internet marketers that are realizing that most people will open a message from Twitter.


http://twitter.com/
http://www.youtube.com/watch?v=ddO9idmax0o&feature=related

My definition of Web 2.0

One of the most visible changes with Web 2.0 has been the variety of new terms we are bombarded with -- many of them with 2.0 added to the end of them. It can be confusing figuring out what the difference between the terms are and what each term means. With that in mind, I've compiled a few articles going over some of the basics of the more popular terms.

http://webtrends.about.com/b/2008/04/04/what-is-20.htm