Kevin Purdy at Lifehacker:
Want to open up your Wi-Fi network to easier access for visitors, block the web’s nasty stuff from young eyes, and maybe regain some bandwidth, too? Go ahead and unleash your inner coffee shop owner. With free software and no extra hardware, you can manage content and bandwidth on your home network, or even manage a semi-public “hotspot,” without feeling like a despot.
OpenDNS figures significantly. Read it all.