what is the motivation for ISP to do that? if it is because FB signed deal with the ISP and covering the costs for those traffic out of its own pocket, what is

what is the motivation for ISP to do that? if it is because FB signed deal with the ISP and covering the costs for those traffic out of its own pocket, what is the problem here? Friendster should offer something to match such deal and bring in real competition. Why there should be a law that stops companies for giving out freebies? if some ISPs provide unmetered access to service A, the only thing that really matters is whether service B can get the same deal by paying the same $ - clearly this is not net neutrality issue.