LifeType
LifeType is an open-source blogging platform with support for multiple blogs and users in a single installation. It is written in PHP and backed by a MySQL database.
LifeType is licensed under the GNU General Public License.
With the integration of the template editor plug-in, users can make custom adjustments to LifeType's templates. As an open source project, LifeType is built, maintained and adjusted by the Lifetype community of designers.