These are really hard to find out. So here they are for 2010!
For Southern California: http://disneyland.disney.go.com/disneyland/en_US/ap/blockoutCalendar?name=AnnualPassholderSoCalBlockoutCalendarPage
For Southern California Select: http://disneyland.disney.go.com/disneyland/en_US/ap/blockoutCalendar?name=AnnualPassholderSoCalSelectBlockoutCalendarPage
…and Premium AP get the whole year free without blackouts