I found an interesting article on mashable.com where the blocking of content is discussed. With the rise of cloud computing and increasing number of teleworkers, IT leaders might be putting their business at risk if they are not in control of their ISPs, who may act on their own discretion to block connectivity.
The link: http://mashable.com/2008/07/11/take-back-the-internet/
IT Leaders must take this into account by reviewing their current terms with their ISPs before it gets too late!