Google is enabling all Google Apps domains (e.g. thenibble.org) to work as authentication for all the services that you would normally need a personal Google account for. This, I think, includes Blogger, Reader, Picasa, and more. Google just posted about this here:
http://googleenterprise.blogspot.com/2010/11/ten-times-more-applications-for-google.html
The one thing to be aware of is that if you were previously using your thenibble.org email address as a personal Google account (with Reader, Blogger, etc), you will be prompted the next time you visit one of the applicable services to choose your account. Google assures us that no data will be lost.
For now I have made myself the only "pilot" user of this service. Everyone will be switched over in January 2011 but if you want your account switched sooner, let me know.
Enjoy!
