For the first hours, not all organizations will be listed there, as listing depends on having an up-to-date profile sent by admins. Don't fret if you don't see your org there yet: there are 180 selected organizations, compare to the number shown at the bottom of the page (88 as I write this).
Clojure/core has been accepted for the first time. If you're a student and you're excited about compilers, debuggers, logic programming, web development, app-engine, android, audio, javascript, and more - consider submitting a proposal idea or getting behind an existing one!
I would guess they did and that they were probably selected. It's just that the list is still incomplete (180 orgs selected, displaying less than 100 as of right now).
The list is actually just a list of accepted organizations who have filled out their profile on Melange. Check back in a few days as all the orgs create profiles.