E-commerce Link: Back to School
Another company to look at is Rapleaf (rapleaf.com). Its offering is not as robust, but you can upload a test file for free and receive a profile of your audience, as well as match rates on each field. You then decide which data fields are important to you, and they will be appended to your file for a fee. Rapleaf integrates with some ESPs to deliver data right inside your existing platform.
Now, we've just scratched the surface! Analyze your results and determine which campaigns are working. Then begin to develop segments of your list. You will be more relevant if you communicate with a target audience with offers and content tailored to the group.