Another whirlwind year in Web marketing is behind us, and the one ahead seems just as exciting. The big news of 2011 emerged as Google worked to make results even more relevant and useful to users, which eventually led to the Panda algorithm update that targeted low-quality sites in the results pages. Then of course, big strides were made by major search engines like Bing and Google to make social search more of the norm leading to perhaps the biggest news in social and personalized search, just announced this month by Google with its Search plus...