You can use customer engagement marketing (CEM) to identify and engage passionate customers, turn them into advocates, and use post-sale customer experience (CX) to outdistance the competition. But to realize these benefits, you'll first have to select from a diverse set of vendors that vary by size, functionality, and post-sale marketing focus. B2B marketers should use this report to understand the value that they can expect from working with a CEM technology provider and to select one based on size and functionality.