Is there like a TL for comp tf2? I wouldn't mind just having some streams of some tourneys in the backround sometimes.
Unfortunately, no. I don't really keep a whole lot of track in comp tf2 because of it.
For articles and coverage alone, there's
http://www.communityfortress.com for NA leagues and
http://www.vanillatf2.org for Euro leagues. For forums, there aren't any that I'd personally recommend, honestly.
For videos, you generally go by caster.
There's ExTV with ExTine (the Yaooo guy)
http://www.youtube.com/user/CommFT
Fatmop/Salamncer (relatively new, and good at it)
http://www.youtube.com/user/Fatmop
Greaver (casts nzfortress, the Australian tf2 league):
http://www.youtube.com/user/GreaverTV
and VanillaTF2's channel
http://www.youtube.com/user/VanillaTVorg
ExTV generally does coverage of NA tf2 6v6 leagues, the exhibition Community vs. Pros (previously Pros vs. Pubs) games, and the odd highlander league match.
Fatmop does a mix of 6v6 and highlander, and guest stars in a lot of places.
All of these guys have streams on justin.tv or twitch.tv that you can find on their youtube pages. There's often a match on at least one of them every day, but I usually just wait for the VODs.
Worth it to note, while everyone knows that 6v6 leagues have banlists, the Euro leagues currently do only stock weapons, a few medic unlocks (primarily the kritz and ubersaw), and I think maybe the Equalizer.
9v9 leagues generally allow all weapons. Exceptions mostly come from things that have really bad bugs, like how until recently there was an issue the Detonator having the ability to get crits instead of mini-crits on burning targets.
Certain maps have "pro" versions used to either "fix" the map by adding extra routes or to remove snow to increase visibility and performance. The ones mostly used right now:
coldfront->warmfront (removes snow)
viaduct->pro_viaduct (removes snow and adds extra routes)
turbine->pro_turbine (adds an extra route)
There was also a pro_fastlane. I really didn't like it.
Edit: An "unfinished" frag video has reminded me that Euro does allow the medic crossbow, but doesn't allow the Equalizer. The offending video here:
http://youtu.be/L4AwEhFlzyE (the latter half has sound desync, unfortunately).