Like just about everyone else in the Bay Area media business, we were instructed yesterday to show up at Twitter for “an event” taking place around 4 PM PT or so. The invite itself gives absolutely no hints as to what the announcement will be, and it’s always hard to guess with Twitter because it could be anything from the Russian

Real estate listings and search site Zillow has named Spencer Rascoff as chief executive officer. Co-founder Rich Barton, who has been the company’s CEO since it was founded in 2005, will take on the role of executive chairman of the board of directors. Fellow co-founder