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

Software Product Management Stack - Resources & tools to help you manage your software product

Salesforce Service Cloud - Service Cloud integrates customer service with social networks and provides a self-service customer portal and knowledge base system.

The Product Management guide - A book on how to create and ship products that people love

Zendesk Support - Social Customer Support and Help Desk and Ticketing

Product Management Exercises - A repository of product manager job interview exercises