[ImJasonH]

Google offered something very similar to this a few years ago: http://googlesystem.blogspot.com/2007/10/google-search-add-o...

Sadly it seems to no longer be supported.

[eurleif]

Your link also mentions that Google has a patent on this (patent no. 20070239716). Interesting.

[frisco]

(That's a publication number, not a patent number. Notice that it starts with a year. Issued patent numbers are sequential.)

[eurleif]

Oops, you're right. The patent number is 7593939.

[blairbits]

Thanks for the link! I had no idea this ever existed.