Over the summer, we saw the launch of KissMetrics , a service that lets website owners optimize their sites using conversion tunnel tools that let you determine exactly where in your signup flows users are dropping off. But KissMetrics founder Neil Patel says that there's one more piece to the puzzle: KissMetrics can track quantitative data, but it doesn't do anything as far as qualitative data. That's where KissInsights comes in. The service has some similarities to GetSatisfaction and UserVoice in that it asks users to express their opinions about the site. But there are a few key differences: first, everything on KissInsights is private — Patel thinks it's a bad idea to expose your customer feedback to competitors.