Megaupload founder Kim Dotcom says the US government is protecting an outdated business model by shutting down his site and placing him behind bars.

FORBES: Kim Dotcom Says The US Government Is Protecting 'An Outdated Monopolistic Business Model'

Google also moved carefully in placing ads on YouTube, but the video site has since become a significant revenue generator.

WSJ: Yahoo Deal Shows Power Shift

Placing a link and a banner ad on a popular portal site helps, but their main weapon is television advertising.

ECONOMIST: Death by 1,000 clicks

Another way to get cheap and useful contact information is by placing an e-mail registration field atop every page on your Web site.

FORBES: Artful Spam