There's an important point here that, I think, a lot of people need to be reminded of, which is: [your search engine of choice] is not the internet; just because you can't find something there doesn't mean it doesn't exist.
The following table lists the search operators that work with each Google search service.
Wireless is everywhere and routers are the force that makes it happen, so why not supercharge yours to take proper advantage of it?
Here is an updated version of the ‘Using Google’s Full Capabilities’. This is basically a master list found on a Russian hacking website.