Back when Google Hacks (http://www.amazon.com/exec/obidos/ASIN/0596004478/savagemind-20) came out there were many search tips there that were not on Googles Advanced search page... but since then Google has expanded the Advanced options.

I've looked at a few sites like googleguide.com, but see that the stuff is already there as an option in Advanced search.

Does anyone know of a site that shows "google hacks" that are not "advertised" as options by Google?

... just curious...

Give this a try (http://www.googleguide.com/advanced_operators_reference.html)

That's the site I referenced... but see I did not look close enough. I see now that they do have some specialized queries that are not listed by Google here (http://www.google.com/intl/en/help/operators.html).