If we know that, it is useful to use facebook, we got in touch with many friends who have not seen each other for, was cognizant of news and relaxation time .
If we know that facebook is used, it is useful to a lot of us like to contact with friends that did not meet each other for a long time, have someone press and stress free time .
If we know how to use Facebook, there are plenty of benefits to the US such as Contact with friends at the time was not met, is to know what news and unwind time