Use Google and Yahoo to find the best promotions, deals, and steals on the internet!

All links below open in new windows...
Cheap Marketing
Yahoo Search Marketing: site:searchmarketing.yahoo.com "promo code" (Yahoo)
Scroll down the results a little and notice the first line under the titles... $75 FREE advertising, $50 credit and more... Now you have your pick :-)

Bottom Dollar Travel Deals
Expedia: site:expedia.com promotion 2008 (Google, as are rest)

Orbitz: site:orbitz.com "promotion code"

Discount Shopping
Amazon: site:amazon.com/gp/promotions

eBay does a lot of promotions, but I haven't found most of them online yet.
eBay: site:pages.ebay.com coupon code

Newegg: site:promotions.newegg.com

If you know any sites this method would be good for or have any requests, please let me know and I'll get on it!

If you want to do it yourself, the basic method is to search like this... site:Sitename+"promotion". Try with multiple keywords similar to promotion, such as "promo" "coupon" "discount." Sometimes the sites have an entire subdomain specifically reserved for promotions, such as Newegg. Sometimes it also helps to put a broad date in to make sure you have current promotions, like Expedia.