Here’s food for thought for companies that rely on e-blasts to announce sales and savings on their products: your customers may be on to you!

According to a new article from eMarketer.com, marketers are trying to get more personal with their e-blast subject lines, a shift that reflects the increasing savvy (or jadedness) of their message recipients. Drawing from data culled by Experian’s 2010 Digital Marketer report, the article points out that between November 2008 and November 2009, more than one in five e-blast subject lines included the terms “you” or “your,” directly appealing to recipients that expect increasingly personalized interaction with their brands in the Social Media Age.