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How to Get More Opens and Clicks: 8 Tips for Writing Powerful Subject Lines and Calls to Action
http://cdemails.com/articles/3626/1/How-to-Get-More-Opens-and-Clicks-8-Tips-for-Writing-Powerful-Subject-Lines-and-Calls-to-Action/Page1.html
Constant Contact
Constant Contact®, Inc. helps small businesses, associations, and nonprofits connect with their customers, clients, and members. Launched in 1998, Constant Contact champions the needs of small organizations and provides them with an easy and affordable way to build successful, lasting customer relationships.

 
By Constant Contact
Published on 09/10/2008
 
The subject line of your email is your first opportunity to engage your readers. In fact, according to a 2007 Jupiter Research report*, more than one-third of your readers will open your email based on what you write in your subject line.

And when they open, you are only part of the way to your ultimate goal of getting them to take the action you desire, such as clicking-through to your website, picking up the phone, or registering for an event. This is where the "call to action" (CTA) in the body of your email kicks in. A strong CTA can inspire higher sales, clicks, or whatever results you are striving for.