A few things you might want to try with Google:
Hand type the following prefixes and note their utility:
link:url Shows other pages with links to that url.
related:url same as "what's related" on serps.
site:domain restricts search results to the given domain.
allinurl: shows only pages with all terms in the url.
inurl: like allinurl, but only for the next query word.
allintitle: shows only results with terms in title.
intitle: similar to allintitle, but only for the next word.
"intitle:webmasterworld google" finds only pages with webmasterworld in
the title, and google anywhere on the page.
cache:url will show the Google version of the passed url.
info:url will show a page containing links to related searches,
backlinks, and pages containing the url. This is the same as typing the
url into the search box.
spell: will spell check your query and search for it.
stocks: will lookup the search query in a stock index.
filetype: will restrict searches to that filetype. "-filetype:doc" to
remove Microsoft word files.
daterange: is supported in Julian date format only. 2452384 is an example
of a Julian date.
maps: If you enter a street address, a link to Yahoo Maps and to MapBlast
will be presented.
phone: enter anything that looks like a phone number to have a name and
address displayed. Same is true for something that looks like an address
(include a name and zip code)
site:www.somesite.net "+www.somesite.+net"
(tells you how many pages of your site are indexed by google)
allintext: searches only within text of pages, but not in the links or
page title
allinlinks: searches only within links, not text or title
I hope there is something new in here for you and maybe this infos will
be helpfull for ya.