I'm not sure when Spider-man became an annual franchise but it seems like Activision is going to be milking this sucker on a yearly basis as they announced
Spider-Man: Web of Shadows today. It looks like Spidey is going to be taking on aliens in this one and that you'll have some more control over Spidey and the direction of the game (maybe some light RPG elements?). Here's the teaser trailer for the game.