Alternate Reality Games, more commonly known as ARGs, are interactive games that involve users through use of the internet and multimedia. Wikipedia explains it as "an interactive narrative that uses the real world as a platform, often involving multiple media and game elements, to tell a story that may be affected by participants' ideas or actions."

An amazing resource for ARG information is WikiBruce.com, where fans collect and edit information on currently running ARGs. More about the ARGs featured on Thursday's episode after the jump.

The show Fringe has an ARG running to promote the season premiere in September. At Comic-Con, users were invited to register at explorethepossibilities.com to receive the first clue, shown below. Fans are working to figure out the clues together at the Fringe-Forum.

The BloodCopy blog is part of an ARG that promotes a new HBO series, True Blood. It follows the experiences of vampires as they start to enter mainstream society after scientists discover a way to synthesize blood. The BloodCopy Wikidot is where some fans have assembled information. The commercial below is part of the campaign and is hilarious.

One of the more involved ARGs is The Lost Ring, designed by Jane McGonigal (famous for one of the best known ARGs: I Love Bees) to promote the 2008 Olympics. One aspect of the game organizes users into different labyrinth training teams.

Labyrinth running involves a forming a labyrinth whose walls are formed by a team of people, who hum to guide one blindfolded member out of the labyrinth. The

Jane McGonigal gives a few gameplay tips on her blog, and the fan wiki has tons of info to work off of.