Yes, definitely feasible, but challenging. Some ideas: a) Focus on a niche, like the best search experience for hackers, or best search experience on mobile fo

Yes, definitely feasible, but challenging. Some ideas: a) Focus on a niche, like the best search experience for hackers, or best search experience on mobile for high school students, etc. b) Do content-based ranking, ie. figure out the good-ness of a website based on an automated analysis of what it's about, instead of depending on the link-graph that powers PageRank.