My old address rnewman@theCIA.net, which I've had since 1997, will stop working on or about June 30, 2013. The local Internet service provider Galaxy Internet Services, which owns Complete Internet Access, is just plain shutting down at the end of this month. They're not even selling themselves to a bigger ISP, like a lot of small ISPs have done over the past decade. They're just closing their doors and going away.
I got only 30 days notice of the shutdown.
Who knows what will happen to the gis.net and thecia.net domains after that. As far as I can tell, the soon-to-close company is not interested in selling the domain names.
I think, or at least hope, that I've changed my address on all the mailing lists and Internet sites that matter to me. If I've missed any, I can only hope that mail sent to my old e-mail address will start bouncing, rather than falling into the hands of some unknown party. (I'm a bit concerned about this scenario, but don't have any good solution to prevent it.)