Page 2 USA Afghanistan
If you follow the link I put in the previous post, you can scan back through his blog and find many, many more entries.
He usually puts up a new "Good News from Afghanistan" post every couple of weeks, so just check his blog every day or so, and you will catch it.
There are a lot of other places, especially blogs, that bring good news from Afghanistan. A lot of military members stationed in Afghanistan have been posting news about the good things they see there.