African looking for FOSS complete beginner materials

am a young african working for the moment in a cyber cafe, i am planning to quite my job because there's nothing am learning from it an i can't grow. i am interested about FOSS(Ubuntu) web design and apps development, i wish to know where can i start to learn and contribute in putting African content online. i wish to know how where i can go to start learning and if they are place for complete beginners. i will really appreciate to collaborate with any one interested in AFRICAN's living on the continent. just google my name : NKOULY MARC STEPHAN to have an idea on who i am and you can join me on G+ hope i can make some friends who can guide me.