Original Sources:
Dota 2 Announcement at Neutral Creeps
DotA 2 Thread at Playdota.com
News: Valve and Icefrog have officially announced Dota 2 for 2011.
Game Title:
Dota 2
Company:
Valve Corporation
Genre:
Dota genre
According to Valve:
Valve founder and boss Gabe Newell thinks that ongoing service and value creation over a game's lifespan is the new reality of game development. "IceFrog was one of the smartest people we've ever met about doing that, and he was doing it with both hands tied behind his back, so to speak," Newell says. The company plans on approaching Dota 2 with the same dedication that won it the fanatical devotion of the Team Fortress 2 community, pushing out dozens of updates that do everything from adding new hats to fixing balance issues to introducing entire new match types for free.
Dota 2 Art: (credits to
DotA Facebook)

Bloodseeker

Morphling
Dota 2 Updates
Be updated via Facebook and Twitter:
Dota 2 | Facebook
DOTA 2 (DOTA2) on Twitter
Dota 2 (dota2updates) on Twitter
DOTA 2 with ISTORYA.NET
Dota 2 will be playable on STEAM.
Dota 2 on Steam:
Dota 2 on Steam
Come join the Steam Group:
Steam Community :: Group :: iSTORYA.NET
Steam Community :: Group :: Dota 2 Philippines
Come join the Filipino Dota 2 community:
Dota 2 Philippines Facebook
Dota 2 Philippines Community