interesting breakdown about Google's analyst day slides:
"Lead in Search
As the market leader, we need to ensure search doesn't become a commodity. Our focus on search is nothing new. We built our brand on being the best search engine, with the best results, and as our competitors have caught up to us, it's become even more important for us to focus on:
Solve international speed issues and bring international users to US performance
2) Comprehensiveness and freshness
"All webpages included in the Google index and searched all the time" -- Teragoogle makes this possible
Expand to other sources of data
Become the leader in geo search (any search with a geographic component).
New forms of content -- video, audio, offline printed materials
Leverage implicit and explicit user feedback to improve popular and nav queries
Introduce new personalization elements
4) User Interface
Experiment with several new UI features to make the user experience better"