What is a "Bebo?" Is it a) a new Internet nickname for Justin Bieber (my first guess) or b) a social network you have never heard of as a result of its stint as an AOL property that was sold at an $840 million loss? According to a lot of unexpected weeping on Twitter, it's the second of these two things. The site unceremoniously went dark and left everybody (including the site's original co-founder) confused about what had happened for several hours before a seemingly drunk company spokesman got around to clarifying that the actual problem was, ahem, "a technical clusterfuck."