There is a pretty cool experimental feature for Google search enabling keyboard navigation. To enable this in Opera's search term, Preferences > Search > Google > Edit and change the URL to (note
&esrch=BetaShortcuts is all I've added):
http://www.google.com/search?q=%s&sourceid=opera&num=%i&ie=utf-8&oe=utf-8&esrch=BetaShortcuts
Then after doing a "g searchterm", you use:
Key Action
--------------------------------------------
J Selects the next result.
K Selects the previous result.
O Opens the selected result.
<Enter> Opens the selected result.
/ Puts the cursor in the search box.
<Esc> Removes the cursor from the search box.
I normally use Opera excellent spatial navigation and fast-forward and back, but this is a nice addition. You can make this change in Firefox at least though I've forgotten how.
Test it here...