Online friendship could be a good friendship as it could be a bad one: Firsltly, it could be an excellent friendship in a sense that it opens a windows on the world, it could bring excellent relations between different people all around the world, knowing their cultures their manners of life... We can have the opprtunity to meet our new friends or invite them. This latter point is the essential elements to know really these persons in reality and judge them later.
Secondly, it could be bad in a sens that it is based on the virtual, and it remains often false. Lot of people do not say the truth concerning themselves, minds..., from this side it could be dangerous as well. In a word : It depends on the persons themselves, if they are good they will be good on the net and out of it.
Risamo