What is Salesforce?
Salesforce  CRM is a web-based Customer Relationship Management (CRM)  service. It allows you to create a single view of your customers and  leads, coordinate your sales, marketing and customer service activities  and provides an overview into how your business is operating.  You can generate, manage, and report on leads, opportunities and  track results from first contact to won or lost business. You can see  the results of your marketing campaigns and understand their impact  using real-time analytics.  It helps to improves efficiency, reduces administration time and lets  you focus more on your business by reducing the time taken to search  for information by providing a centralized service. Salesforce has several products and service categories  such as Sales cloud, Service cloud, Data cloud, Collaboration Cloud (including Chatter) and Custom Cloud (Force.com).