Just found out a sleek, neat, informative and interactive website by the name kunena.com. Though not written in Kiswahili, the site description reads as follows:
Kunena, translated from Swahili meaning "to speak," arose out of a fork of the former Fireboard forum with a new team and some of the previous developers, including several Joomla core developers. Kunena 1.5.7 is the most recent stable Joomla 1.5 native version of Kunena. Only a few months after the launch of Kunena, 1.5.4 marked a major milestone in the development of the next generation forum component for Joomla.
Learn more about kunena.com at www.kunena.com