1) Your First-Party Data: The primary and most valuable data set you can access, first-party data encompasses transactional and other customer-level profile information you have on your customers. It could also include your own off-line segmentation analysis that allows you to map a customer to a customer profile around which you build your marketing programs. This can also include your analytics or other on-site tracking data, which can deliver behavioral insight to your consumers. This data can be difficult to export from its current environment due to the ad hoc nature of the data, but, if possible, look at ways to make this information accessible to your digital sites.
2) Third-Party Data: A consumer's broader Web browsing and buying history can now be accessed in session to provide you with more context on their likes and habits. Data management platforms (DMPs) and other data aggregators are accelerating this offering and, just as importantly, the availability of this type of data. This is invaluable in the context of new visitors who you know nothing about historically.
3) Real-Time Behavior: Let's not forget what our customers are telling us with each click. We get enamored with our predictive modeling to the point that we do not see the tell-tale signs as they are happening. Take the time to stop, look, and react. Your analytic tools, personalization tools, and other software-as-a-service (SaaS) platforms can help you trigger alternate site experiences based on every click you see.