A report Monday by Associated Press said that Walgreen Co., McDonald's and Twitter each reported unrelated security breaches, involving customer e-mail addresses and other private information.

Retail marketers have long feared their e-mail messages being considered as spam. But who decides...

Still reeling from the double hit of the May 2009 postal rate increases and the recession, brick-and-mortar merchants are looking for new ways to save money and market to their customers.

Approximately 70% of consumers’ final purchase decisions are made in-store, and more specifically, at the...