Facebook spent some unknown amount on some 750 IBM patents a few weeks ago (likely in response to Yahoo!'s patent lawsuit threat). Microsoft just bought 1100 patents or so from AOL for approximately a billion dollars. Which is the more powerful bag of patents, Microsoft's AOL patents or Facebook's IBM patents? P.S. I believe Google bought 1000 patents from IBM a few years ago as well. Could google have a stronger set of patents from IBM than facebook's IBM set?