Week-long exclusive sponsorships of kottke.org's RSS feed are available through the end of March.
In sponsoring the feed, you get the chance to promote your company or product in a short post that will appear in the feed. A sponsor "thank you" note will also be posted to the front page of the site. Your message will reach an estimated 110,000+ RSS subscribers.
If you're interested, check out the sponsorship page for details and get in touch. Thanks!