Samples

http://www.tacobell.com/stealabasestealataco/

Read this short article, How to Create a Successful Sales Promotion

http://www.thegraphiccafe.com/cafe/uploads/resources/Successful_Sales_Promotion.pdf

Sales Promotion - How it Should Be Done to Gain More Customers

http://ezinearticles.com/?SALES-PROMOTION-(How-It-Should-Be-Done-To-Gain-More-Customers)&id=1065086

Promoting your business, http://www.smallbusinessnotes.com/operating/marketing/promotion.html

What are sales promotions, http://strategic-business-planning.suite101.com/article.cfm/sales_promotions 

http://www.ehow.com/video_4753768_starting-sales-promotion.html