Great presentation about Docs to Blogs from a colleague presenting at CUE
https://docs.google.com/a/eusd.net/presentation/d/11TUxdOpHm5iSOPvqLLUFgFairOn1QMJG1pacp0ljo_A/edit#slide=id.p
Begin with a paper blog to teach the rules of blogging and mainly commenting
http://www.notesfrommcteach.com/2010/09/learning-to-blog-using-paper.html
There are two types of comments when it comes to blogging: Highway and Dead-End comments. You can elate comments to these two terms; a dead-end is a place in the road that stops and you can’t do anything, a comment that leaves no available responses is a dead-end comment. A highway is a road that keeps going and going until you want to exit; a comment that leaves the author and reader to engage in a conversation is a highway comment.
Why blog with elementary students?
https://sites.google.com/site/bloggngwithelementarystudents/
http://saramboucher.weebly.com/blogging-in-the-classroom
Once blogging use twitter to connect students with people that will comment and provide feedback on their work #comments4kids
or use
Quadblogging or
Primary Quadblogging at http://www.mrswideen.com/2014/06/registration-is-open-for-primary.html