Steam Greenlight is a new service Valve announced, where you vote on Indie Games that you want to see published for the digital PC/Mac download platform.
The Indie titles that get the most amount of votes will be the ones Valve will select to be published to the Steam store! This is a very cool new feature that will surely be welcomed with open arms by all Steam users and Indie developers.
Steam Greenlight will launch towards the latter part of August 2012. 
“Making the call to publish or not publish a title isn’t fun,” said Anna
 Sweet, in a press release the developer just released. “Many times 
opinions vary and our internal jury is hung on a decision. But with the 
introduction of the Steam Workshop we realized an opportunity to enlist 
the community’s help as we review certain titles and, hopefully, 
increase the volume and quality of creative submissions.”

