Google giveth Google Glass invitations and Google taketh away.

The Web giant has begun notifying winners of its Glass Explorer #ifihadglass contest, which invited people to submit their applications of Google's high-tech specs if they were among the first chosen to have access. Kicked off a month ago, the contest asked applicants for their pitches, ideas that included everything from health care applications to skateboarding to journalism and storytelling.

Google said yesterday it would reveal the winners over Google+ and Twitter over the next few days. Many began receiving notifications today that looked like this: