I was interested in Trevor Cook's comment about managing the 'long tail' of blogs.
This image (below) is a process that was devised by Alison Clark and is in my book.
It is an approach for handling comments and issues that arise in on-line public relations. Of course, it is a process that integrates within the application of the Relationship Value Model.
It offers a methodology and PR discipline for handling the 'long tail' of commentary in the blogsphere.
The first thing to note is that there is a need for constant and thorough monitoring and maintenance of records even when no action is taken.
The processes for monitoring are noted in my post about Lisa Poulson's issue and this is how to treat citations once they have arrived.
This is not rocket science. Its very simple, long established and basic PR.