I love data

Especially Google Analytics data

Google Analytics

Google Analytics is a tool that helps you track website data and measure performance of marketing activities. By using Google Analytics you can create a marketing strategy based on your website data and the KPI's that are important to you.

KPI's is an abrreviation of key performance indicators. This is the nubmers that are important to your buisiness and can be used to evaluate marketing efforts on your website.

Learn more on Wikipedia