Innovention Lab Pulls Back the Curtain on Amazon’s Sales Rank with Metric Junkie

CARY, N.C. (SEND2PRESS NEWSWIRE) — Innovention Lab, Inc. releases Metric Junkie, a free Web service designed to help independent authors and musicians better visualize their Amazon Sales Rank through automated tracking and graphing services. Thinking of writing your own book or publishing your own song? Print on Demand services have made self-publishing an attainable goal for millions of people. But once your book or CD is out, how do you know if your marketing efforts are paying off?