If you enjoyed AdWordless Google yesterday, here's more ad-avoidance goodness: AddArt, a Firefox extension prototype, replaces banner ads with art. A write-up in NY Times; via Stay Free! The NY Times piece also mentions this piece of trivia from Forrester: "53 percent of consumers had ad-blocking software on their computers in 2006, up from just 21 percent in 2004." That probably includes all the pop-up blockers that come bundled with browsers these days, though, but I'll post more if I find out something. The Forrester research is this one, if your organization has a subscription, and here's more info in Information Week.