GoogleNet

This is interesting. Free nationwide Wi-Fi, courtesy of Google. But why? Well, the advertising and marketing potential is compelling, but also:

An even more compelling reason for Google to build its own network is that it could save the company millions of dollars a month. Here's why: Every time a user performs a search on Google, the data is transmitted over a network owned by an ISP -- say, Comcast (CMCSK) -- which links up with Google's servers via a wholesaler like AboveNet. When AboveNet bridges that gap between Google and Comcast, Google has to pay as much as $60 per megabit in IP transit fees. As Google adds bandwidth-intensive services, those costs will increase. Big networks owned by the likes of AT&T (T) get around transit fees by striking "peering" arrangements, in which the networks swap traffic and no money is exchanged. By cutting out middlemen like AboveNet, Google could share traffic directly with ISPs to avoid fees.