Shopify - Shopify is a powerful ecommerce platform that includes everything you need to create an online store and sell online. Try it free for 14 days.
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
Commerce.js - Rapidly create eCommerce experiences on web and mobile
Zoho Desk - Industry's first context-aware Helpdesk Software
Shopify App Store - The most powerful ecommerce app store
Salesforce Service Cloud - Service Cloud integrates customer service with social networks and provides a self-service customer portal and knowledge base system.