We've been using Breakcold for a few weeks now, and it powerfully enables you to setup lists of different contacts (clients, prospects, targets, influencers, etc) so that you can quickly filter their LinkedIn and Twitter posts and interact with them.

The founder, Arnaud, has been excellent at responding to our questions and even jumped on a call with us to show us around the product.

Although Breakcold lacks some features found in more advanced CRM software like integration with Gmail, Google Contacts, and sales workflows, its potential is evident, especially with its LinkedIn and Twitter features. These alone are worth the price of entry. :-)