Other Browsers: Due to the way this script monitors for dynamic changes in Google's Instant Prediction results, it is unlikely to work on other Greasemonkey-like extensions.
Google site: Tool — What It Does
Want to limit your query to a particular site in the results? Or to re-run the query excluding that site from the results? Click the green citation URL below the result header to display a form. It should be self-explanatory from there, but see the screen shots below for an example.
You may have choices of directories on the site in addition to the main domain.
Click the + button to limit your query to this site, or the - button to exclude the domain. This dialog also has a checkbox to change script options (click Edit Script Options).
Result of + button:
Result of - button:
The script detects the "title and date" format in results, indents it, and adds a link for More Results:
Setting Script Options
By default, the script adds "more results from" links but these open in the same window or tab. You can check a box in options to open them in a new wndow or tab. Also, by default, the script shows the domain without www as the first option. If you always want to drop the first subdomain, there now is a checkbox for that (e.g., productforums.google.com and groups.google.com could be omitted by omitting google.com). This feature may offer nonsense choices in multi-level TLDs (e.g., co.uk).