Why, opening links in new browser tabs, of course!
Tabbed browsing FTW!!

Say I am looking at a list of things- could be the results of a search on google, amazon, a forum, ... whatever.
I keep the list loaded in one tab and open all the links I'm interested in by clicking on them with the scroll wheel.
That way I never have to 'back up' and reload my list and I have all items next to each other for easy comparison.
As I finish with each tab I close it, finally getting down to my starting list again. It's easy to edit my search, too, if I'm not getting the results I want.