This year we are 10 years old, and we have been asking… How has the email environment shifted over the last decade? This article shares, very clearly, the 10 valuable lessons we have learned that affect the success of email marketing.  Keys points:

Acquisition is important, but retention is where the money is
Email is all about the conversation again.
The ISPs are not the enemy
An email message is its own creation, not a repurposed web page
Email has broken free from the desktop
“What’s in it for me?” still rule
One size does not fit all
A marketer can’t claim success until it’s measured the right way.
Email can go social.
It’s time to blow up the silo
Read the article at iMedia, here.