My suggestion would be to use
Sogudi
You simply type a preset keyword into safari's menu bar followed by a search string and it does the rest. For example, to get the link for Sogudi, I went to my menu bar and typed "vt sogudi" and it went right to versiontracker (it comes with some sites preset, like 'vt' for versiontracker, 'dict' for dictionary, 'img' for google image, etc) and found me Sogudi. It's painless to set up and customize and comes in handy quite a bit.