21Classes Links to an external site.

21Classes Links to an external site. has an intuitive and user-friendly approach to student blogs. It is based around one central teacher blog that the student blogs are connected to. It has a central control panel that allows teachers access to all student blogs and the ability to edit, block or message students about what they are posting on their blogs. 21Classes also lets you moderate student blog postings before they go live, it has protection against spam, and lets you choose from a variety of themes, headers and colors. It does offer a free service, but this is limited to ten 1Mb student accounts so you will likely be more interested in the fee-based premium version (which is $39 per year) due to your classroom size.