Hi,

I really like to be able to interact with readers of our K2 articles - Ideally, site members should be able to:

• hi-lite text, add notes, etc as if they were reading a book and making comments in the margins or on sticky notes
Note and highlights should be tracked by user.
• Admin should be able to enable annotations to be seen by everyone (highlights and notes would have username ID) or only by the annotating user.
• Output should be able to identify what text was annotated (and what color the highlight was; what the associated note was).

Does such an extension exist? If not, are there recommended developers or interested parties in creating such an extension?

Thanks!