San Francisco officials have released the six proposals the received from companies bidding for a citywide Wi-Fi wireless internet network contract, and, typically, the proposal gaining the most attention is Google's, writes the Mercury News. Google's is a joint bid with ISP EarthLink, which has won bids to build Wi-Fi networks in Philadelphia and Anaheim. In San Francisco, Google would handle the ads, and EarthLink would handle just about all else. Their proposal is for two levels of service.

Google would provide a free, ad-supported version that runs at 300 kilobits per second; EarthLink would provide a higher-speed, no-ad service for $20 per month that runs at about 1 megabit per second, comparable to traditional DSL.

Tech heavyweights Cisco Systems and IBM have also teamed up to offering a bid, proposing to build a network with Cisco's equipment and IBM's software. Their offering would be supported through corporate or private sponsorships.