I don’t know if I missed it in the docs or what, but by accident I ran across this “Post to Blapp” thing in my services menu in all my OS X apps. I was listening to something in iTunes when I saw it. Out of curiousity I tried it, and Blapp opened up with the info for my currently playing song. Interesting, so I opened up one of my RSS aggregated articles from nntp//rss and tried it. The options was grayed out, so I selected some text and voila! There it was. When I hit it, (which I can also do via command-shift-B) blapp opened up with the text of the article already in the edit window. I believe this is all I need to make the decision to go with the NNTP//RSS and Blapp combo over using NetNewsWire.