This document summarizes a webinar about using KISSmetrics to optimize marketing. It discusses how KISSmetrics was used to increase a homepage conversion rate from 3% to 8% through A/B testing. It outlines KISSmetrics' A/B testing workflow and how to identify the biggest barriers in a funnel to focus testing efforts. It also provides tips on finding new acquisition channels and segments to target through analytics in KISSmetrics.