Saw this on DaringFireball.
DirectLinks – Canisbos is a Safari extension. Really useful for copying links from Google Search results. Update 6 Sep 2021: extension is gone, se DF for details, link now to archive. Ironic that the link goes to spam sites now.

Normally when you try and copy a link from a google search you get this sort of thing:
https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CCwQFjABahUKEwjq9YnOtOPHAhXxS9sKHUQDB-k&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FFolktale&usg=AFQjCNHDEzwkM43l294OJ6AptxA7_Gg1pw&sig2=Lnf3ewVtFjbDOa7bl3SosA

As google wraps the link so that they can count clicks. Installing the DirectLinks extension means if I copy the same link I get:
https://en.wikipedia.org/wiki/Folktale

Which is a lot more useful.  A quick google finds ways of doing this in Firefox and chrome too. I’ve not tested those.