Dotted Lines: Kitties on the beat

Every evening, the Daily Dot delivers a selection of links worth clicking from around the Web, along with the day’s must-see image or video. We call it Dotted Lines.

• Mental Floss is launching a new YouTube channel with Vlogbrothers John and Hank Green.
• Watch the first episode of “Death Star PR,” the show based on the hilarious Twitter account of the same name.
• The Associate Press Stylebook updates its stance on referring to people in same-sex marriages as “husband” or “wife.”
• An invading force gets beaten down by kittens in the latest video from Corridor Digital:

• This guy bought a 20-year-old Crystal Pepsi on eBay. And drank it.
• In case you missed it, blogging site Posterous is shutting down. Here’s a quick way to move your Posterous site to Tumblr.
• How to party on Presidents’ Day (according to actual presidents).