This document discusses best practices for personalizing websites to improve customer experience and profits. It recommends personalizing the website within the first 2/10ths of a second to match user intent and purpose. Examples are given of how to personalize based on context like location, behavior and time of day. The document advocates treating the website like a salesperson by giving a warm welcome, preventing bounces, building trust over time, and using progressive calls to action. It outlines how Acquia personalizes through progressive profiling on forms and personalized messaging, and provides tips for setting goals, executing personalized content, measuring results, and adjusting based on outcomes.