Copyright!

I have learnt that, there are several exceptions to copyright infringementand "fair use" can be considered as one of them. Fair use cannot be considered copyright infringement depending on the amount of the material used from the source and the purpose of using the material. If the material used is little compared to the source content that is considered fair use but if a person uses more than 60% of the material in the source that is considered copyright infringement. Also if the material is used for commercial purposes that is considered copyright infringement. One has to be careful in using the materials that are in the journals posted on the internet sites because you have to be consider the fact that everything is copyright protected unless stated under public domain. Public domain materials are the ones that are not copyright protected and anybody can use them. My stand point is to be careful when using materials from the internet because in that way you can avoid breaking the law and getting sued.