If you've got sites that are a little old and you're not doing anything with anymore, you might think about letting the domain die out.. save $10, right?
Bad move!.. if...
If your site is developed, got page rank, backlinks, getting traffic and making you money even though you haven't touched the site in over 6 months, you'd have to be crazy to let the domain expire.
Renewing your domain name will be the cheapest traffic you've ever paid for!
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