You can check out Google’s tweet on Panda. In addition to announcing the news, it links to a pretty extensive Google blog post that offers guidelines for building high-quality websites. It’s worth noting, by the way, that the tweet describes this as a New data refresh of Panda. What exactly does this mean? Google’s spiders constantly crawl the Internet and bring back data, which is then sorted and weighed by the more than 200 factors that go into Google’s algorithm. Panda, as Danny Sullivan observed, is one of those factors. These factors decide where websites will rank, and how relevant the…