The exponential development of the Internet has dramatically transformed the learning practices in our universities. This digital revolution has created a myriad of resources whose copyright limits are not always clearly defined,they are accessible on a self-service basis for everyone. This g accessibility associated with ultra-powerful search engines likeGoogle and the power of certain E-learning software which makes studentsfinding online courses and information for their research and academic productionsverry easy , it is easy to sheet in an online course than in presential one.