Upon plugin activation, an “Add to your list” link with a star is automatically added at the end of each post and page.
Clicking this link will pop-out a list on the bottom right of the screen, and add the current post or page to the list.
This list is saved via HTML5 storage to the browser so it will be available also in the future to the user.
You can allow all users, or only logged users to perform some actions:
You can see a working demo here:
http://www.rioloft.com/rio-guide/