I don’t know what flock is, does or feed on. The info page contains really long sentences. I downloaded it anyway.

Flock was founded on the vision that the web browser can and should enable the richest user experience possible across information-gathering, sharing, communication, self-expression and interaction. Every individual has their own unique preference for favorite sites, utilities, media and friends. Flock’s philosophy is to deliver a more personal experience of the web, where its users are in control and more connected to what they value.