Student Websites and Blogs

I have begun a project with my class involving developing their own website.  I have found them to be highly motivated thus far.  I have scripted out exactly what pages they need, as well as how many blogs.  My class is blogging weekly on two things:  First, they all set a goal for themselves, so they blog on how the goal is coming along.  Second, they reflect on something they have learned throughout the week.  Thus far, the students are doing a really good job, and as I mentioned before, they are very engaged.  I intend to use these websites as an e-portfolio during spring conferences.  I currently use weebly for my student sites.  It isn't free, but it is relatively cheap (I think it's $40 per year).  There are, however, several free student blogging sites.  Edublog and Kidblog are two free sites for blogging.