It's that time of year again. The International is starting soon. Sooner than expected, actually. MUFC had some last minute passport issues, and so their spot in the tournament has opened up. Mousesports and World Elite are currently playing a best of 5 to decide who gets it.
For those who want to watch in their browser, Tobi is casting at JoinDota:
You can also watch the games in the client. Even if you don't have a beta invite, you can still use the spectator features in the client. It's available here:
Finally, keep in mind that there are team pennants available in the Dota store. You can sport them while you watch games, and when your particular team does something of note you have a chance to get an item drop.