As I mentioned before, based on all the Halloween activities around the spooky holiday, social game companies must sell as much virtual items during this time as Hershey’s sell candy.

Here is Inside Social Games’ guide for all the Halloween events this weekend within the big 4 social game developers’ games (including FarmVille, of course).

And going retro, here’s our previous post with Games.com’s summary of Halloween events from a week before.