Yahoo needs all the revenue help it can get these days, which is why it’s odd that subsidiary Flickr hasn’t been serving ads properly for a day or so and apparently no one at the company has noticed. A reader writes in to point out that if you click on any of the ads that appear on the site when you do a search (try this one for Apple), the user sees the linked page in an iframe instead of being taken to the advertisers site.

That’s handy, because the advertiser is charged but the user never leaves the Flickr site (something only Facebook seems able to pull off). My guess is this is fixed by morning.