Linkrook is very easy to use.

Step One: copy any long ugly link like this one:

http://maps.google.com/?ie=UTF8&hl=en&q=jfk+to+350+5th+ave,+new+york&f
=q&sll=37.0625,-95.677068&sspn=23.875,57.630033&z=12&om=1

Step Two: Paste the long link into Linkrook, click the Linkrook It! button and you will get a nice short Linkrook link like this one:

http://www.linkrook.com/107_

Step Three: Copy and paste your new shorter Linkrook link.
Hooray, now give it a try!