Automatically Figuring Out Acronyms

There ought to be a web service, probably powered by a search engine, that figures out acronyms. For example, if someone wanted to know what, say, MIT stands for, one would look for webpages containing the keywords MIT "M* I* T*", the latter being a wildcarded keyword of three consecutive words starting with the letters M, I, and T. Of course it's harder than that because of small filler words like "of", and other weird ways acronyms and abbreviations are formed.