Registered user notepad

Hi all,

I’m looking for a plugin that will enable my site to do the following:

1. Allow users to record their own notes about content the encounter on my site;
2. The ability for the user to take notes on any page of my site, then these notes feed into the registered users’ main notepad;
3. For the registered users’ notes to be saved after log out, the ability to print them and email them;
4. For the admin to see what the users have said in their notepads;
5. The option for users to share their notes with other registered users;
6. All of this to appear on the front end, not the WP dashboard.

If anyone knows of a decent plugin that is capable of the above, your knowledge is greatly welcome!

Many thanks!