Our site, Alias Opinions, is starting a campaign to save Alias. We know that the rumors aren't confirmed that this will be the last season, but we're campaigning to let ABC know that we're concerned about the show's future. We're calling the effort Saving Sydney. Come help out!
We are also trying to write to ABC on a set day. This way, ABC is bombarded by thousands of letters around the same time (more of an effect). Here's the link with more info.