Just a few years ago banner ads were considered all the rage in online marketing. But now they’re considered a big yawner, what with anemic click-through rates. Avenue A/Razorfish is aiming to change that. The Microsoft-owned Web agency is testing new Web display units that weave social-media features popular on many sites directly into banner ads, reports Adweek.com. Display ads for products will include customer reviews and ratings. The new units, called AdLife, are sized like traditional banners ads and can run on most every Web site.