HubSpot CRM - Free CRM software for small businesses.
FileProInfo - It's All About Files, Software, Online Tools - 100% Free
Less Annoying CRM - A simple customer relationship manager made just for small businesses. Manage contact info, track leads, and never miss a follow-up.
File-Extensions.org - Large computer file extension library with detailed explanation of each file type with links to download free or associated software programs.
Keap - Grow Sales. Save Time. Get Organized.
GroupDocs - GroupDocs is a web-based service for online document sharing, collaboration and management.