The digital sales funnel, that runs from the social networks, via the company website (and marketing tools such as Hubspot and Pardot) through to the CRM (see Salesforce below) and finally into Invoicing software, is maturing.
Salesforce are moving their efforts in to web marketing. Hubspot are moving into CRM. Though the CRM's are massively bigger (Salesforce at $44Bn) than their Web marketing competitors (Hubspot at $2.2Bn) an almighty fight is on our hands!