Game 3 of the Japan Series is today starting at 6:15pm JST. If you're a night owl like me you can perhaps check out this channel on justin.tv to watch it on and chat with the community at JapaneseBaseball.com.
If you miss it, Baseball Reference has a wiki page devoted to this year's Series.
Update: I got to watch a little bit of the game last night, and was pretty impressed by justin.tv. I'd definitely recommend checking it out if you're up. The Giants won the game, 6-4, taking a 2-1 lead in the series. Giants starter Tetsuya Utsumi looked pretty good when I was watching, he was able to throw all his pitches for strikes.
You can check out Game 4, same bat-time, same bat-channel.