The Giro d'Italia organization announced the 22 participating teams, which include 18 automatically selected ProTour teams and four teams with wild cards: Acqua and Sapone, Astana, Ceramica Panara and Tinkoff Credit Systems.
http://www.cyclingpost.com/giro/article_004285.shtml
http://www.cyclingpost.com/giro/article_004285.shtml