One of the largest online-offline promotions ever, PepsiStuff.com marks the first effort in a marketing alliance between Pepsi-Cola Company (NYSE: PEP) and Yahoo! (Nasdaq: YHOO), a leading global Internet commerce, communications and media company, that was first announced in March. The under-the-cap program enables consumers to earn merchandise and digital awards and discounts online by purchasing specially marked 20-ounce and 1-liter packages of various Pepsi products. Consumers can access the site at