I know this has probably been asked a billion times, but have not seen a recent post on it...

So what are the ways to get included into the Diablo III Beta?

And for those of you who have been in WoW BETA, SCII BETA etc... how did you get so lucky?

Right, so the most consistent method is going to be to opt-in through Battle.net.

There's actually still a guide available for StarCraft II, and much of the info is still accurate for the process to opt-in for the Diablo III beta. http://us.starcraft2.com/beta-faq.xml

Aside from the normal opt-in there will undoubtedly be contests and promotions, such as the keys given away at BlizzCon. As we have info about additional ways you could potentially get a beta key we'll of course let you know.