Hi Kkinser and welcome to mobileread
Just thinking that if you want to share your notes and highlights with other people - could you make use of the Kindle's Social Networking facility in conjunction with Facebook?
It would be possible for you to set up a facebook group with people you want to share your notes and highlights with and the latest generation of Kindles allow you to post notes and highlights to facebook online. You can set it up so only those people you want to can see your items.
Not saying that this is the best approach but thought I'd suggest it. More info here:
http://www.kinworm.com/2010/12/easy-...-all-your.html
Sounds like you're doing pretty well yourself to devise a macro
Hopefully other people will have some more suggestions for you.