That's fair enough, it seems like it would be really useful for article searching, like the NSA one you gave (great, example, blew Google out the water!). I can see it being great for research too, assuming academics spend the most time on a good source which seems reasonable. I'll definitely be giving this a go for some searches, really nice!

Oh, and a quick suggestion: Have you considered a Firefox search engine addon? I do most searches from the omnibar, and I think more people would switch search engine up there than manually go via blippex.com