There’s a still slim chance that you can still get in the Diablo 3 closed beta?. Wanna know how? Take a pencil and paper (kiddin’) and follow the instructions posted by the BlizzardCS®:
1. Have an active Battle.net® account
2. Be a registered user of Twitter®
3. During the Contest period become a follower of BlizzardCS® by visiting http://twitter.com/BlizzardCS and clicking “Follow;”
4. Use the hashtag #DiabloBeta and @BlizzardCS in a Tweet,
5. Send an email of the tweet to firstname.lastname@example.org. With a link to your tweet
The way I understand the rules, there will be 100 beta keys sent out every week (for the next 5 weeks). You should hurry up and do it ASAP, because my guess is that the longer you wait, the more tweets (and emails) there will be at Blizzard’s marketing HQ.