[image of a message in an ask box about to be sent: “If being on tumblr doesn’t get you 100% behind same-sex marriage I don’t know what will.” Above the box is Obama’s 2012 logo.]
That’s right folks, Obama is on tumblr (allegedly).
Awesome, but that’s not a question… just sayin.
— unknown
Turntable.fm’s co-founder Billy Chasen has his business on lock, literally. You don’t use keys to enter Turntable.fm’s HQ, you send a text message from a white-listed phone number and voila, it opens. This is a much smarter, safer and cheaper option than handing out a ton of keys.
UPDATE: This won a Twilio prize and he explains how to build one yourself.