Here’s my favorite simple rule from the article …

“7. Work offline to make money online. Send your customers a catalog via postal mail. For example, the catalog could be full of add-on products for the original product they purchased. Consider selling upgrades, special services, attachments, etc. Get them back online.”

Also, I definitely like the bonus tip…

“Bonus: If you want to give something away for free to generate traffic to your web site, consider creating a simple report. Give it away and then drive people back to your web site or sales page.”