This idea of a simple query language that actually is geared towards normal people is interesting. SQL was supposed to be that way back when, but no one today would ever claim that a search engine that exposed SQL to users would be better for the masses. But a simpler version could have some really awesome broad impact in other areas. As people become more comfortable using semi-structured queries we can use them in our own web apps without extensive education or making them “advanced features”. I don’t know if Blekko can succeed, but if they can I think the web will benefit in some interesting ways.