I put all the monthly mailings from Council in a collection on my Kindle. I just forward the email from council to my Kindle's free email address (i.e. user@free.kindle.com). Amazon converts the MS Word documents to the "Kindle" format and does some cleaning of the PDFs.
I also use if for information that I gather for events. I use the free service InstantPaper to convert web pages into Kindle documents: InstantPaper automatically converts them into the Mobi format and sends them to my Kindle.
There is also a nice free tool called "Briss" that removes all the borders on PDFs, making the text larger on the Kindle. I used it on the Guide to Safe Scouting...I think it makes it easier to read.