Google is reportedly testing a new animated ad format for AdSense.

Barry Schwartz at Search Engine Roundtable points to some forum discussion about the formats, where user IncrediBILL shared some videos of the ads in action, which Schwartz took the liberty of posting to YouTube:

Most of the people in the WebmasterWorld thread, where IncrediBILL shared the videos haven’t seen the ads in the wild. Google runs tests all the time, so it’s hard to say if this will become an option for everyone in the future, and it’s hard to say how big this particular test even is. Either way, the format is drawing a lot of “wows” out of the discussion participants.

One user says they had the format on their site “not long ago,” and that at first they though they were ugly, but then they “grew on” them. “I now think it is a very good idea,” the person says.