The other day we reported that Yahoo! Publisher Network Allows Contextual Relevant Images Near Ads Only. We discussed the importance of placing images near the ads on your site. They increase visibility and increase the click-through rate of the ads. Last night I was talking with Jeremy, ShoeMoney, on NetIncome and he said he wrote a script to automate the process of finding relevant images to place near the contextual ads.
Today I found a thread discussing this at DigitalPoint Forums. Basically, ShoeMoney's advertising banner maker searches image databases based on a keyword phrase and gives you options for images you want to display. You check off the images and then the tool automatically downsizes the images to appear next to your ad units. Try it out, works kinda well.
Forum discussion at DigitalPoint Forums.