Booting Up: Safety Features Edition

airbnb Booting Up: Safety Features Edition“AOL’s Ad Dollars Finally Rise” [ATD]

Airbnb now features 24/7 phone support, safety features. [TC]

Visa said to be rushing to the mobile wallet. [Reuters]

Kindle Social reading: it’s been mentioned on Fred Wilson’s blog, but is it necessarily a good thing? [Read Write Web]

Berlin’s start up scene: “poor but sexy.” [CNN]