I will not discuss the functionality yet . below is just a basic design idea that i think can be used to make W2L ( wiki to learn ) desktop client .

I have made it on photoshop . ( i haven't made it on QML yet because i wanted to get reviews of this prototype first .)
Tell me what it lacks , how much it sucks or what tab or feature need to be added .

Thanks !!

http://s23.postimg.org/50h6vj8yz/design.jpg ( cannot post direct image : Your images may only be up to 720 pixels wide. )