AVR-Chat

I have found a couple of examples of interfacing an RF module with AVR
uC, but I was hoping to get a few more examples.

So far, I have:
www.uchobby.com/index.php/2007/05/01/simple-rf-wireless-link and
www.serasidis.gr/circuits/RF_remote-contol/RF_remote_control.htm

I have also come across DTVii also.

If anyone has any other resources that they can point me to, I would
appreciate it greatly.