HubSpot CRM - Free CRM software for small businesses.
D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
Less Annoying CRM - A simple customer relationship manager made just for small businesses. Manage contact info, track leads, and never miss a follow-up.
Chart.js - Easy, object oriented client side graphs for designers and developers.
Keap - Grow Sales. Save Time. Get Organized.
Google Charts - Interactive charts for browsers and mobile devices.