In my opinion it's the cheap way to get good by means of publicity, it should be performed by using the principle of csr
like it and it make corporate have good image.
I think it is news releases should synchronize with sincerity will make a good picture with the organization
I think it is good PR to show social responsibility, public news releases. Some companies have also used up publicity. Just look forward to the benefits the company itself does not have a social responsibility.