Fascinating article on grassroots alternatives to paying a company like Verizon for Internet access. If enough of these community-built networks come into being and link to each other, we'll have a brand-new Internet!
There is information here covering everything from keyboard shortcuts to virus protection. There is even information about physical hardware protection.
That's a great site, James -- definitely some useful info there, and it's very clear. I like that there's a Computer "Word of the Day"! Wish it had an RSS feed or Twitter account. :)