Flock, the first web browser to integrate social features into itself is going away. Official support for the web browser will end on April 26th. The team who developed the browser has merged with Zynga, the social game developing company that is behind CityVille, FarmVille, Mafia Wars and more.
Flock first came out in April 2005, and was based on the Mozilla Firefox web browser. Starting with version 3, it moved over to Chromium. It never had a very large user base. It used to connect to over 20 of your social network accounts.
And in April 2011, about six years after its first release, official support is going away. Their website currently has an Official End of Support notice (pictured above). Current users will get popup notifications. After the 26th of this month, some features will stop functioning. You can still use the browser, but you won't get updates. If that happens, your system will become vulnerable to attackers. You probably won't want that to happen.
Flock, before flying away, is now urging its users to migrate to Firefox or Chrome. If you use Flock and like the social features, you might be interested in RockMelt. It's a Chromium-based browser, packed with social features, that made news when it started the closed beta. It recently opened up to a public beta. Try it out!