I know that widgets, avatars and coded whosits and whatsits aren't (for the most part) highly educational. The students have fun and really enjoy posting codes into their blog sites to make their pages individual and unique. Have you had any success with finding sites that are appropriate resources for elementary blogging newbies?
So far, I have one:
http://www.adrianbruce.com/blogging/blogging_awards.htm
Award Courtesy adrianbruce.com