This is a video featuring Kevin Spacey. He’s a man who gets paid millions of dollars to pretend to be other men, for entertainment.

Twitter is crossing mediums to develop a TV show, according to a Variety report. Joining forces with LA-based production companies Reveille Productions and Brillstein Entertainment Partners, Twitter plans to launch an unscripted show that will put “ordinary people on the trail of celebrities in a revolutionary competitive format.” Variety says the show’s concept was the brainchild of novelist Amy Ephron.

Tweetmeme is on a tear. According to Compete, the Twitter-centric link tracker went from nowhere in February, 2009 (with 26,000 unique visitors) to more than tenfold increase in March (to 385,000 uniques). Nick Halstead, The CEO of UK-based Fav.or.it, the company behind Tweetmeme, tells me he is tracking closer to 200,000 uniques a month based on yesterday’s visitors, but that he is adding 50 percent a week