Finally, Groundspeak is implementing a reward system

New Cache Rating System, From the Feedback site

Groundspeak has just announced that they will be implementing a 'Favorites List':

...we have decided to let people rate a percentage of their finds as their favorites

It will be a Premium member feature.

I'm hoping that the feature will be filterable.

Interesting that it should be implemented a day after opencaching.com's beta site was released. Garmin's site allows finders to rate a caches "awesomeness" as well at D/T ratings and cache container size.