In case the web, television and all the other media where Google has inserted its advertising system weren’t enough, Google has on Wednesday launched a technology, called AdSense for Games, which will introduce targeted advertisements into online games as well.

The software, which is as of now in a closed beta test, is designed to include ads within online games either at the start or end of levels, or during level change. There are also some plans for custom product integrations, although Google doesn’t have much experience in this field.

The software only works with flash, website based online games and requires that the publisher install a software development kit (SDK) with their games and specify what ad unit to run, and where in the game to place it.

Some of the first publishers to try out the new program are Konami, Playfish, Zynga, Demand Media, and games network Mochi Media. Other publishers interested in joining the beta must meet certain criteria:

"At this time, eligible publishers must have a minimum of 500,000 game plays and have 80 percent of their traffic from the U.S. or the U.K.," Ryan Hayward of Google’s Ads Product Marketing wrote in a company blog. As the system matures, less successful game publishers may be allowed to join.

The revenue from the ads will be pay-per-impression or pay-per click and will be divided equally between Google and the game’s producer. Three marketers have so far signed up to advertise through AdSense for Games. They are Sprint, Sony Pictures and Esurance.