I'm trying to imagine here what it would take to beat Google in it's own game. The most frustrating searches I've had with google are always about some thing I

I'm trying to imagine here what it would take to beat Google in it's own game. The most frustrating searches I've had with google are always about some thing I have seen before, but can't find again. It would be relatively easy to optimize for this if you can have some kind of bookmark app and search history available. So that search would prioritize stuff I have bookmarked or found previously. It would be probably be valuable for the search engine to know what products I have bookmarked. The catch here is that I'm not going to trust google with that data. So essentially delicious with very powerful search as by product.