The Heroes of the Storm
technical alpha is now active. If you're lucky enough to get in during the first wave, it will appear in the Battle.net launcher for you. You'll be able to download the game and then play. There also was a short private email from Blizzard announcing the alpha -- note that it was not flashy as most emails are from Blizzard. We're giving these details so you don't fall prey to any phishing attempts.
If you wish to sign up for your chance to enter the beta, you can do so via the Heroes of the Storm website
or your Battle.net account page.
Known live streams of the alpha tonight:
Please remember that this an alpha and the quality of gameplay will be impacted by graphical and other glitches. This is normal and to be expected. The streams above will likely encounter problems as the game resolves itself.