Gmail
Description
Gmail, officially Google Mail in Germany, Austria and the United Kingdom, is a free Web-based email (webmail), POP3 and IMAP e-mail service provided by Google. It was released on April 1, 2004 as a private beta release by invitation only and was opened to all as a public beta on February 7, 2007. With an initial storage capacity of 1 GB, it drastically increased the standard for free storage.
Gmail currently offers over 6000 MB of free storage (increasing by approximately 3.348 MB every day), with an additional 10 GB available for US$20 per year. It has a search-oriented interface and a unique 'conversation view' similar to an internet forum or the iPhone Text messaging application. Gmail is well-known for its use of the Ajax programming technique in its design, and has tens of millions of users.