[rgovind]

Yes. In today's search engines, I cannot give you a blacklist and say filter out these results. If I am looking for tutorials, I cannot say no video results. If I am looking for market research, I cannot filter out news websites from the links. For personalization, I cannot give google any suggestions on what I absolutely do not want to be included etc.

[greglindahl]

blekko had these features, and almost no one used them. The google guy who teaches advanced Google searching says that almost no one uses Google's advanced search, either. So if this is a viable niche, you'll have to figure out how to find these users...

[rocky1138]

Who cares if a small subset of people use them? It doesn't make them worthless.

[greglindahl]

Oh, I think it has value. I was just reporting that I tried it at blekko, and think I completely failed. Maybe you'll be able to do better.

[ianwalter]

Very interesting! Is the main problem really finding the users or could it be developing an interface that makes it easy enough for users of varying technical abilities to occasionally use?

[rocky1138]

Why do you feel you failed? Just economics?

[rgovind]

Since Greg was CXO at blekko, I would say for whoever is making search engine, its important!