The land of up to three Wi-Fi networks is live with EarthLink: The city may eventually have coverage from MetroFi, EarthLink, and the Wireless Silicon Valley project. EarthLink is offering 30 days of free use starting today to promote the 10-square-mile network. Thereafter, service runs $4 for an hour, $16 for a three-day pass, or $22 per month from EarthLink. The company will resell access to other providers. Their press release cites PeoplePC as a third-aprty reseller, but that firm is owned by EarthLink.