www.wordpress.org
Wordpress is a "free and open source blogging tool" (Wordpress, 2014). This tool allows people to create and express themselves through blog entries free of charge.
In an educational context, specifically for a language arts class, this tool would be useful as a way for students to express their feelings. For example, a teacher could have their students create blogs that coincide with a piece of literature the class is working on that discuss their feelings about the piece.
Wordpress can be used to remove barriers for students because with a blog they can choose how they want to discuss and express their feelings whether it is through written word, pictures with descriptions, or an uploaded audio tape, students would be able to do whatever works best for them.
Unless you specifically set restrictions, Wordpress does not have any restrictions.
