I have used www.anysoldier.com for a couple of years. The website is operated by one of the soldier's fathers. Each soldier posts all the information about their unit/group. If you go on that website to to "where to send" and there are tons of names to choose from. They love to get mail and often the letters are given to the "guys" who don't get much mail. Hope this helps.
It helps very much, d. I'm on it...
Thanks.