i do occasionaly, though last year i played in a few clans, now im just doing it for the fun of it. but yea, i've actually thought of trying a little article about this map..
Defense of the Ancients is a custom made map for Warcraft 3, but right now, theres more people playing it, and theres more tournaments for it, then for the original Warcraft 3, not very surprising, with a 5vs5 games with over 90 charactes, big amount of items, and such, and still being near perfectly balanced, the people behind it truly deserve praise, along with Blizzard for creating an editor this powerfull

Going on, here in Europe, there has actually been a swedish artist who made a song about the game, and it was aired on tv (even now i still see it come by sometimes) and it shows in game footige, and some game sounds of the game.
heres the vid: http://youtube.com/watch?v=nAmddu8mCPE (the lyrics are in swedish to if you wonder why your not understanding anything) btw, this song was aired through all of Europe (i'm from the netherlands so yea)
Also, for anyone who wants to play it, dont play on Battle.net due to lag issues there (even minor ones) its not very playable there since DotA required A LOT of timing and such. theres of 50000+ players on GG client almost all DotA players, this program is very helpfull, it has account leveling, friends lists, chats, channels, banlists and such.