Dresden fans campaign to save their show
There is a bunch of helpful info over at the group's main site. They have a letter writing campaign where if you email your letter to Dresden fan Belynda she will print it out and mail it for you, email and phone contact info for Sci Fi, links to a petition, and a host of other options for you to help out.
If you just happened to miss the show when it originally aired you can get all 12 of the episodes through iTunes and there is a nice selection of behind the scenes stuff over at the official Dresden site on scifi.com. The first, hopefully of many, season DVD set is scheduled to be released next month as well.