Debbie Weil is a corporate blogging and social media expert, online marketing consultant, speaker and author of The Corporate Blogging Book (Portfolio). She consults with large companies, CEOs and senior executives on how to create blogs that connect with customers and attract media attention.

EmailLabs tested 3 Subject Lines for the March issue of The Intevation Report (their company newsletter).

A. Using Link Click-Through Tracking to Segment Your List
B. 3 Tips to Improve Your Newsletter’s ROI
C. Build Your List Through “Piggy-Back Marketing”

And the winner was…

Hint: there’s a numeral in it. Their conclusion? It was simple, conveyed the benefit of opening the message and required no “translation” on the part of the recipient.