Not really a failure since I still believe in the idea and use it. But the project has been a failure as I was unable to get it across to the users.

I started with http://fefoo.com some 4 years back and finally launched it one and half year ago. I got some good initial feedback but almost very little coverage in blogs or twitter.

I completely failed in promoting it to the target audience. Since it looks like Google the comparison would inevitably come up and most "bloggers" would not even give it a second chance. It was for people who use more than one search engine, but without the right promotion and zero marketing skills it almost never got any coverage.

Its still not dead but I am keeping it alive as I use it and a few hundred people seem to use it.