Joomla 1, Joomla 2, Joomla 3 (Joomla Versions Explained)
My Joomla Story - Joomla!Day UK 2013
My Joomla Story - Joomla!Day Germany 2012
Joomla! Volunteers Portal @ Joomla World Conference 2013
My Joomla Story - Joomla!Day Switzerland 2013