Apparently there were a few Blizzard blokes at E3 last week, even though we didn't see them wandering the floor at all. Mike Morhaime and Paul Sams were both there to accept their awards for world records from Guinness after making it into the 2009 Gaming edition. World of Warcraft picked up a record for the most popular MMORPG in the world (with, as you probably know, 12 million players), and Starcraft gained recognition for being the best-selling PC strategy game, with 9.5 million copies sold worldwide. Neither of these awards are really that much of a surprise -- both games have already garnered tons of other awards, and both games are already squarely in the pantheon of the best and biggest PC games ever sold. But being recognized is always nice, we're sure.
They honored a number of other extremely popular games and services as well, including two big Activision Blizzard titles: Call of Duty 4 was recognized for being the most-played online video game, and Guitar Hero was recognized for being the best-selling rhythm game series (though Red Octane, the game's original publisher, was honored, and they've only recently been acquired by the Activision overlords).
Congrats to all the award winners, as if they even needed it. Something tells us the millions and millions of dollars in revenue from all of these games was probably a nicer reward than Guinness recognition. Just a guess.