This infographic from LeadPages, a landing page solution, provides some great insight into email marketing and SPAM statistics. Key to this infographic is how many legitimate emails wind up in the junk folder. Chances are that's where many of yours are, too.
Permission-based email continues to lead the pack in incredible click-through and conversion rates. So many businesses are putting all their effort into acquisition strategies to drive more traffic that they forget ways of capturing the visitors that actually did make it to the site. Add a subscription form so you can capture those visitors who are interested, and push messages to them when the opportunity arises.
And when you design and send those emails, utilize these best practices: