Facebook Engagement Dips: 34% Spend Less Time on Site [STUDY]
Perhaps they're spending more time on Facebook-connected sites (like Pinterest) and apps (like Instagram) instead?
Actually, Facebook's Mobile Sponsored Stories might be working well.
Since Mobile Sponsored Stories were only released a few months ago, it's too soon to tell.
There do seem to be a lot of companies that are happy with their Facebook ad results.
I think it's too early to say the ads really aren't working.
I mean, it looks like Twitter is working...
Also, it looks like lots of people are still using Facebook: