I find myself using this really simple add-on for Firefox all the time. Basically what it does is when you highlight text in a passage/title/link/whatever, then drag and drop it anywhere, it will search Google in a new tab for the highlighted text. It also works with unlinked URLs – just highlight an unlinked URL such as google.com, drag & drop it and it will automatically go to the URL – and photos – just drag & drop to download the image (you can disable that if you like).
You’ll find yourself using it a lot if you’re a Firefox user, so head over to the QuickDrag add-on page now to download it.
It works in Chrome too