Changes to Groundspeak and geocaching.com are posted in their forums under Announcements at http://forums.groundspeak.com/GC/index.php?showforum=4

I stay out of the geocaching.com forums when possible, but this one is worth not only knowing about but subscribing to.

You will, if subscribed, only get a few notices of new posts, because things don't change that frequently, but when a change occurs or is about to, you should know.

In this case those of you considering changing your geocaching.com username must do it before May 15 or live with it forever!

Ed