[joosters]

You can also use !sp to get Google results without Google tracking.

[dmdeller]

You can now also use !s which is the same as !sp.

Note that it works as either a prefix or a suffix - it might be easier to put the insertion point at the end of the text box.

If you're using Safari, you can use my Safari extension to do this with a toolbar button or keyboard shortcut: http://horizon-nigh.org/re-search/