Here is a useful list of links that I have found on my travels across the Internet
Everything you wanted to know about IRLP but was afraid to ask!
Call Sign Lookup at www.qrz.com
APRS info at www.aprs.net
Find any APRS station here. Put in KY4K-10 and you will see where my Digipeater is located. Or try KY4K for my home APRS station.
Want information on Motorola radios? Give BatLabs a try. They have everything you want to know about Motorola radios.
My friend KY4J in western KY has a lot of info on his website. See a live view of APRS in Evansville, Henderson and Owensboro.