But will they make ad sales together? AllThingsD says the two have settled their patent disputes without money changing hands, but rather that there’s some kind of joint ad sales effort in the works, along with something about integrating Facebook Likes data into a new Yahoo ad format. I’ll believe that when I see it. It’s easy to imagine them opening up inventory for big, cross-platform campaigns. And frankly, Facebook could use a lot of help selling that sort of thing. But just because they do a little contact integration, I wouldn’t be quick to assume that Facebook’s potentially valuable Likes-based ad network – you know, the one Facebook denies it’s building – would open up via Yahoo. Though doing a big ad deal with Facebook might remove the “interim” from Ross Levinsohn’s Yahoo CEO title. I was waiting to post this in hopes for an official announcement, so stay tuned.