@yukawasa: I just ousted @shiraber as the mayor of Hatena, Inc. Tokyo Office on @foursquare! URL2010-07-09 08:01:34 via foursquare @yukawasa: 取締役会はじまる (@ Hatena, Inc. Tokyo Office) URL2010-07-09 08:01:32 via foursquare @yukawasa: R…