The king of small-time video is taking a big-time step into video game marketing.

Google-owned YouTube has added e-commerce to its inventory, an announcement on Google said Tuesday, with such things as music, movies, TV programs, books, concert tickets and, yes, video games, sold from the site.

Just click on a clip or promotion that pitches one of these things and Amazon.com, Apple’s iTunes or some other online retailer cues up through YouTube, so as to keep viewers from bouncing around the Internet. The dent in your wallet takes shape immediately afterward.

If all goes well, this “click to buy” strategy will help Google whittle down the $1.65 billion debt it incurred when buying YouTube almost two years ago. Apparently, the ads tacked as trailers on nearly all YouTube content weren’t shaking free the green fast enough.

One of the games promised is Electronic Arts’ new god-game “Spore.” Google offered little else in detail Tuesday, though.

“These retail links are being gradually added to our library of music videos and are currently only available to users in the United States,” Google’s announcement said, “but our goal is to slowly but surely expand the program to additional content and product partners, as well as our international users.”

In other words, just keep clicking until you find what you want — or until your credit card issuer says you have to stop.