HubSpot CRM - Free CRM software for small businesses.
Froged - One click solution providing easy-to-use marketing, sales and support services to turn website visitors into happy customers.
Less Annoying CRM - A simple customer relationship manager made just for small businesses. Manage contact info, track leads, and never miss a follow-up.
Intercom on Customer Engagement - A book on how to create messages that drive engagement
Keap - Grow Sales. Save Time. Get Organized.
Keep Your Friends Close - A free e-book about maximizing Customer Lifetime Value