This page is just showing off some feature of the Flock web page API. If you try these links from a browser that doesn't support it (non-Flock or old Flock version) you'll be redirected to
flock.com
.
flock.media.openFeed:
I can has cheezburger?
flock.media.openPerson:
Join the Flock
flock.media.open:
Open mediabar
flock.people.open:
Open peoplebar