Google Granted New Similarity Patent

According to Bruce Clay, Google has filed a new patent that checks to see how similar web pages are on a site. If a page is deemed to be too similar, Google will choose not to index it.

So what does this mean? It should hopefully take out a lot of the spam search sites that contain thousands of pages which are virtually indentical. It also means that if implemented, sites will need to have plenty of unique content on every page.