Salesforce.com
To understand just how much Salesforce dominates the CRM space, it is crucial to take the example of Dreamforce and apply it. How many other CRM solutions can say that they are able to gather some of the country's best and brightest? Every year, Salesforce users and administrators huddle together to discuss all of the latest innovations—and to learn all of the ways in which Salesforce can be used to make doing business easier. These days, there are business professionals who have completely dedicated their livelihoods to learning more about Salesforce—and applying their knowledge for their employers' benefit. Indeed, it is easy to see why so many people have become passionate about this CRM software. With the ability to transform the way that companies conduct business, Salesforce may just be one of the most revolutionary tools of all time.