[7][8] Flock was available as a free download, and supported Microsoft Windows, Mac OS X and, at one time, Linux as well.

[14] Flock 2.5 integrated social networking and media services including MySpace,[15] Facebook, YouTube, Twitter, Flickr, Blogger, Gmail, Yahoo!

[16] When logging into any of the supported social services, Flock could track updates from friends: profiles, uploaded photos, and more.

Flock 2.5 added Twitter Search functionality, multi-casting of status updates to multiple services, and the introduction of instant messaging via Facebook Chat in the browser.

offered the analysis: "Whether this was down to poor implementation design wise (one needs only glance at 'Rockmelt' for an example of a social browser done right) or just general apathy towards having alerts from twitter, flickr, facebook, digg et al. in your face all of the time is moot: Flock has flocked off and for all its innovation it never quite lived up to its own hype.