Facebook has some recent changes in the way you manage your News Feed. Technology changes constantly, and it seems that simply never compete. It 's like a game of cat and mouse. Once you get comfortable with something that changes!
Find it so difficult to add and old friends who do not feel for years, or perhaps you have found new friends with common interests on Facebook and suddenly you do not see any activity of them work in your new feed.
The reason isbecause the standard for your Facebook news feed has changed. I do not know when this change happened, but now is the default for which you only get that in your feed items to friends who have recently interacted with. This means that all those friends that you are getting, you might forget too fast, why does not it have all of these activities.