Monster is closing down its career assessment and social networking site Tickle, which it bought in 2004 for a price of up to $70 million. Tickle, of those annoying banner ads asking you to take those tests, also owned Ringo, a photo and video-sharing site (started, interestingly, by Bebo founder Michael Birch, who sold it to Tickle in 2003) , and LoveHappens, an online dating site. All of these will be absorbed into Affinity Labs, a network of vertical career sites recently acquired by Monster, according to this April story. It will also lay off about 30-35 of the employees by end of this month. Meanwhile, Monster sent out an e-mail today to that effect, announcing the closure of Tickle, reports SAI.