Tumblr launched one of its first revenue-generating programs today, allowing a select group of blogs (not sure how they’re selected, but the three options it gave me happened to be my three most popular blogs) to feature themselves in the Tumblr directory for a nominal fee — categories range from about $9 to $19 to feature your blog for a week. Here’s the link.

The process is ridiculously easy and fun — I tried it out and featured shey.net in about ten minutes (including Photoshop time) while visiting the Tumblr gang at their office today. The results were almost instant — as soon as the feature went up, I saw new followers start popping up in my timeline (thanks, guys!).

Screen shots of the process below.

1. Enter your info:

2. Get thanked:

3. In your face, Gary and Dens!