This being a Thursday and, if we're not woefully mistaken, the first Thursday of the month, it must be time once again for First Thursday. This evening, many of the galleries and museums of East London will keep their doors open until 9pm. Participants include big hitters, like the Whitechapel Gallery, Barbican Art Gallery and Museum of London, but also the smaller exhibition spaces that pepper this part of town. The monthly extravaganza is backed up by a stonking web site that includes suggested itineraries, and the whole shebang on one Google Map. Image by Chrisjohnbeckett in the Londonist Flickr Pool.