Ethernet is, quite simply put, plugging your network directly into a telecommunication provider's network. When you bypass the local telephone company you cut out an expensive transportation step. Having direct access to customers is a telecom carrier's goal as it allows them to control the user's experience from end to end while cutting cost. These savings are passed on to you. "The market for managed Metro Ethernet services is expected to grow by 30 per cent a year until 2010, when it will top $25 billion (203bn) worldwide."
Infonetics Research - July 2007
"Over time, Ethernet will overwhelm SONET in the MAN/WAN market. Ethernet is cheaper, has better economies of scale and allows for easier, more unified networks. Ethernet is knocking at the gates, and it's coming in."
Greg Collins - July 2007 Business Communications Review Magazine