For last few days, I have had many discussions around which is better and if Google+ will be able to turn the tables on Facebook. I was on the side of Google+ and had a lot of faith in Google to do it much better this time.
I have been a part of a project/product where we did have similar discussions and ensuring that people are getting information relevant to them. The filter bubble that Eli Pariser mentions in his talk is exactly what we did try to build in our product and are even trying to do so today. We pick up programs that people have selected and we then pass on content based on the selections.