Marketers everywhere are finally realizing just how necessary marketing automation technologies are for their campaigns. In fact, SiriusDecisions notes that marketing automation adoption is expected to increase 50 percent by 2015. Clearly, this isn't just a buzzword (it never was). Rather, it's a valuable tool for optimizing your sales cycle. And while marketers are certainly recognizing the value provided, as is the case with anything new, they're still seeking clarity on how to best measure its return on investment.