We just pushed out 0.7.90. In this version we have continued to polish the UI and most importantly, we are starting to surface in the user interface a section which showcases the most recommended articles included in your feeds. This feature is similar to digg-like voting: you bubble up articles to the top by clicking on recommend. The difference with digg is that 1) the scope is the list of feeds you subscribe too and 2) people who are in your network have a greater weight in the filtering (ie different people will get different recommendations).
(Thank you to Cyril for his continuous input during the UI refactoring)
Note 1: There are two new options in the preference panel to customize the behavior of the recommendation area (including turning it off if for some reason you do not like it).
Note 2: It will be interesting to see if this feature will result in people recommending more. We will report on that once we have the data.