I've noticed that images seem to be by far the most popular on Facebook. A recent one I uploaded for my fan page (http://www.facebook.com/ModernSherlock) got 12,000 'likes' and actually reached over 51% of my audience. That was a bit of a milestone for me. :-)
I've also always stuck to only posting once or twice a day and mostly never in the weekends.
I took the liberty of thinking that if I'm too busy to Facebook in the weekends, then everyone else is too. (Yeah... I know it doesn't work like that).
I've also always stuck to only posting once or twice a day and mostly never in the weekends.