I have not been able to spend as much time reading correspondence blogs like I used to. I kind of miss it. There is so much good stuff out there!
Creative Correspondence. I think you'll like it too.
Do You Use a Bulletin Board? by A Penchant for Paper
What to Write About by 365 Letters
4th of July was a Good Mail Day by Missive Maven
The Rumpus is launching Letters for Kids, where your child can receive a letter from an author such as Lemoney Snickett, among others for a small monthly fee.