2006 Google Prediction
I believe that the rise of community bookmarking sites like delicious and digg and wink and .... ad nauseum, Google will implement a social bookmarking capability to their search engine which will allow for even more focused advertising as well as keep google fans from using agregated search or meta search engines. Google will have to evolve into a meta search engine. They will and they'll keep it clean and as transparent as they have until now.
With Google's warchest of IPO funds going to two guy garage start-ups, I am certain that they will buy up at least one of these social sites owned by two entrepreneurs in shorts in their garage and not some fully dressed corporation with VC money already.
I love how Google operates.