Sure, Salesforce is awesome.

But have you considered these open source alternatives?

They are free, self-hostable and community-driven.

Check by yourself: Odoo .

So is Odoo

Open Source Apps To Grow Your Business
★ 41.1K ERP CRM Accounting License: LGPLv3
Odoo is a suite of web based open source business apps.

The main Odoo Apps include an Open Source CRM, Website Builder, eCommerce, Warehouse Management, Project Management, Billing & Accounting, Point of Sale, Human Resources, Marketing, Manufacturing, ...