Recently I was asked to make a free floating navigation element, so that when you scroll down the page it would follow. There are many adaptations of this but for standard html websites, but I was unable to find a SharePoint specific one. Until writing this post I just recently noticed an alternate but similar approach here http://blog.muhimbi.com/2009/08/how-to-float-sharepoint-quick-launch.html
Download the code snippet from here
Add the script references to the files in the Master Page, or CEWP.
Once you add that to your pages it’s activated. This is tested to work on standard V4.master.
If you’re quick launch is larger than the view then it will constantly be scrolling down, and you’ll never see the bottom of the quick launch .
Your quick launch must be smaller than the actual view.
I’m using jQuery from the Google hosted API libraries – https://developers.google.com/speed/libraries/devguide#jquery
Here is a look at the actual script