Social networking and microblogging service utilising instant messaging, SMS or a web interface. [Description from dmoz]
Q: What are you doing? A: I'm reading Hoover's profile on Twitter. The company operates a free Web site that blends social networking with the ability to post short messages, or micro-blogs, commonly known by users as "tweets." Technically, in order to "tweet," Twitter wants users to answer one question: What are you doing? The response, which is limited to 140 characters or less, is posted to a personal Web page that can be restricted to select viewers, or viewed by anyone. Unlike instant messaging, viewers do not reply to Twitter postings. Tweets are designed to be accessed through the Internet and on mobile devices. CEO Evan Williams, Jack Dorsey, and Biz Stone co-founded Twitter in 2006. [Description from Hoover's]
This site reaches over 94 million U.S. monthly people.The typical visitor uses eHarmony.
Index represents how a site's audience compares to the online internet population as a whole. An index of 100 indicates a site's audience is at parity with the total internet population.
The affinity numbers represent how likely a given visitor is to visit one of the listed sites or categories compared to the internet average. For example, an affinity number of 10.2 would say that a user on "X" website is 10.2 times more likely than the average internet visitor to visit the other site or category that is provided.
This website is Quantified, and the data displayed here is directly measured by Quantcast.
Addicts are the hardcore segment of a site's audience, who have 30 or more visits to that site in a month.
Regulars refers to a segment of a site's audience that frequent a site more than once per month but not as much as addicts who frequent a site 30 or more times per month.
Passers-by have a single visit over the course of a month.