I have a question: is possible to share a text on Facebook as it is possible on NING networks? I've tried whit the bottom option share but it shares only the link of the page. can anyone help me if it's possible? Thanks!
I think it's an issue of different types of "shares". For example, if you look above this content box, you will see a: Share button and a special Facebook button. The Share button is to share this page URL with all kinds of Social Media like Digg, Stumbleupon, Facebook, etc... But the special Facebook button which is integrated within Ning now, will share the URL and the "title" of the page you want to share.
And in either case, you should see an Entry Box where you can type extra text if you want to share the text as well.