Valve launches Steam.TV, intends for it to compete with Twitch
It seems Valve is currently working on quite a few interesting projects, lately. The most recent one of which just went into beta today, and is called Steam.TV. Currently, it can only host DOTA 2 streams, and is having connection issues, but it appears to be a service that wants to eventually compete with the streaming titan, Twitch, or, alternatively, follow the trend like YouTube Gaming had. There's chat integration, with both viewers, or limited to Steam friends only. If you check it out, you can see The International, a DOTA 2 tournament, being streamed live.