I clicked Community from the jump list on Steam, but of course the damn thing is broken as hell so I have to use Chrome.
Ok so I just linked my YouTube account to my Steam account. All it really does is embed your videos onto your profile on a small miniscule link on the side, near the "View Screenshots" and where "Edit My Profile" would be.
You can choose which videos to post on your account, and you can "tag" what game from your library they are using.
EDIT 2: I just broke it already again by removing a bunch of videos at once.