Anybody that filters out the content generators like ehow, ask.com, demandstudios, etc will get an immediate nod from me. Wait.. doesn't DDG Do this? (honestly, I don't know)
I find EHow results useful from time to time. Isn't ask.com another search engine? I don't know about demandstudios because I don't know what their domain names are.
> Isn't ask.com another search engine
In a way they still are but they also to a lot of ehow type SEO.