A great search engine I use sometimes-www.mamma.com

I find the relatively new search engine www.mamma.com very good.I use it sometimes.It is behind Yahoo and Google in efficiency and usefulness,but sometimes the searches on www.mamma.com more fruitful and precise than those on Google or Yahoo.The search engine
'Mamma ' was invented and launched in Montreal a few years ago.I urge more net users to use it.