This is interesting…I think. I mentioned yesterday that if one does a Google search, one discovers how few people who write about Jerry Siegel and Joe Shuster know how to spell either or both of their surnames. I was going to point out how this is also true of Charles Schulz, creator of Peanuts — so many people insist on spelling it "Schultz" — but I see that Google compensates for this. If you search for "Schultz AND Peanuts," it just assumes you mean "Schulz" and proceeds accordingly.
I'm used to Google figuring out typos. If I go to search for "David Leterman," it asks me if I meant "David Letterman." But in the case of Schultz/Schulz, it doesn't even bother to ask.
I'm guessing — and will probably find out for sure, since at least one Google employee reads this site — that Google builds some sort of database of common spelling errors, noting how many people take it up on its suggested corrections. When the volume reaches some specified level, it just starts taking people directly to the correction. Is that how it works?