Steam to Sell Non-Game Software
While Steam has been selling non-game programs such as the Making of Portal 2 Artbook, and more recently Indie Game:The Movie, both have been game related.
An email from Valve states that Steam is to begin carrying non-game software:
The Software titles coming to Steam range from creativity to productivity. Many of the launch titles will take advantage of popular Steamworks features, such as easy installation, automatic updating, and the ability to save your work to your personal Steam Cloud space so your files may travel with you.
More Software titles will be added in an ongoing fashion following the September 5th launch, and developers will be welcome to submit Software titles via Steam Greenlight.
"The 40 million gamers frequenting Steam are interested in more than playing games," said Mark Richardson at Valve. "They have told us they would like to have more of their software on Steam, so this expansion is in response to those customer requests."