@evanphx That's just for testing them yourself.

And that "validator" tells me that my username is invalid. :(

Open™

Oooh. @Twitter Cards have to Approved™. :/

@veganstraightedge @twitter But it doesn't. :( What is wrong with my meta tags?

I once made a screencast for sale. This tweet should display a @Twitter Card with it.

http://iamshane.com/products/making-better-slides