Invision Power Board is a forum system developed by the Invision Power Services. The software is written in php and uses MySQL as a database management system. IPB can help you build your community in no time with the hundreds of features that are included in the software. Even though IPB is a commercially developed product, there is a large modding community that can help you add even more functions to your board. The IPB board is quite flexible and you can even migrate your community from other popular platforms, such as WordPress, Joomla, Vbulletin and others.