Youtube have given a good opportunity to everyone to follow Bsc,Msc or any course that conducted by popular universities around the world.
Youtube has opened a sub-domain call EDU where there are loads of lecture videos of lot of variety of courses from universities around the world. This is really free and you don't have to pay for anything.
So now you can type www.youtube.com/edu in the browser and you will be able access the contents.Also Youtube have given the facility of searching through university name wise or by the course name.
So enjoy the videos and improve you r knowledge.
Visit :- youtube EDU