The Deck is a smallish ad network that handles the advertising for kottke.org, which consists of an unobtrusive high-quality advertisement in the sidebar of each page of the site. The Deck recently moved to a spiffy new domain and is no longer so smallish; the network now includes 29 sites.
Some recent additions to The Deck include Ze Frank, Chip Kidd's Good Is Dead, FFFFOUND!, Dean Allen's recently resurrected Textism, Clusterflock, and Aviary.
If you'd like to advertise on kottke.org and 28 other great sites, head on over to The Deck site...we'd love to have you.