A non-exhaustive list, the application flashInvaders, designed for ios and android, is on the official website.
space-invaders: The official website of the artist Invader, thanks so lot.
invader-spotter: A beautiful database, really well documented. The website provides in particular information on destructions and rehabilitations regularly updated.
unoeilquitraine [on the look out]: A wonderful website, and an investigation field for me. Its webmaster, lionel belluteau, photographer, is passionate about street-art.