I found an article about 3 tips for blogging that I will summarise here.
Tip 1: Create ONE Topic-Focused Blog
START classroom blogging projects with ONE classroom blog that EVERY student can make contributions to. Doing so takes the pressure of generating content off of individual students simply because there are dozens of potential writers who are adding content at any given time.
(This is what we are trying to do in primary. In Secondary, it means one blog for all subjects, as we are doing in Year 7.)
Tip 2: Train Student Editors to Lead Your Blogging Project
YOU don’t need to be the one that does all of the drafting and coaching and revising and posting!
Instead, work to train a small handful of student editors. Give them the username and password to your classroom blog and turn them loose. You’ll find that they are JUST as capable as you are — and probably MORE motivated!
(In Kidblog, you can make students into moderators who check and approve posts, whilst not having access to the admin side of it.)
Tip 3: Recruit Readers and Commenters to Your Blog
For any blogger, the ultimate reward is crafting a piece that actually gets READ. Every page view and comment left on a classroom blog is proof positive to your students that they DO have an audience and that they ARE being heard. To address this challenge, I always recruits volunteer readers and commenters when my students are working on a blogging project. Most of the time these volunteers are parents or PTA members who want to help at school but can’t find the time to get away from work during the day. I ask them to monitor the blog for a month at a time and to leave two or three comments a week that are designed to challenge students.
(Parents, Senior students, PAFA, Parents volunteers, etc could do this role. Or, your students may have to comment on 3 posts a week.)
[Source: Bill Ferriter, Three Classroom Blogging Tips for Teachers, http://teacherleaders.typepad.com/the_tempered_radical/2013/03/three-classroom-blogging-tips-for-teachers.html?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+the_tempered_radical+%28The+Tempered+Radical%29]