Online culture has been obsessed with cats since the Japanese text board 2channel first posted Giko Neko in 1998. Cat cafes have capitalized on this obsession and brought us a cache of cats in real-life locations all over the world. What started as a Japanese phenom has already spawned a couple of cat-themed cafes in Silicon Valley - one in Oakland and another in San Jose. Now San Francisco has a new tea house full of them, too.