I'm not sure most of you even use Facebook as you don't seem to know what was there, why it was removed or what it even does.
If you are on Facebook you are on a social network and (if using it on a regular basis) shre updates and information with people.
Facebook currently does not have a way of showing what music you like or what you are buying unless you make an extra step to tell people that.
The Facebook portion of Ping that is currently missing would do a couple of things:
1) Post an update on your page so all of your friends could see that you are on Ping and start following you
2) Provide a link from Ping to Facebook so any updates you may have on Ping you COULD share on Facebook.
Everyone I want to talk to or share this information with is already my friend on Facebook and not having that link there now means Ping is practically useless to me or any of my friends that follow me....it will get better most likely...or fade into practical non-use (like my Google Buzz account)...