This morning, I heard an interesting report on how state legislatures are attempting to address how social media and other internet accounts are administered after the owner's death. Oklahoma, for instance, passed legislation that included powers to administer these account in the powers that personal representative have to administer estates.
Here's the link: http://www.npr.org/blogs/alltechconsidered/2012/04/03/149875008/who-has-the-right-to-our-facebook-accounts-once-we-die
Here's more on e-estates. http://minnesotaestateplanningandprobate.blogspot.com/2010/02/dealing-with-your-e-estate.html