Zoho
Zoho is one of the most trusted name in CRM and business applications around the world. They currently have a free edition of their online CRM software that is made to help smaller businesses with limited budgets easily manage their customer interactions. With Zoho, you get a complete view of everything that matters: your sales pipeline, leads, customer contact information, ongoing and planned projects and a whole lot more. All of your information is securely stored in Zoho's cloud service, so your CRM will be available no matter whether you're in the office, at a client's site, at home or on the road. The free CRM supports up to 10 users and is truly free for life. It's not a time-limited trial offer and you won't get constantly pestered to buy upgrades that you don't need. You will also be able to integrate your CRM with other free business apps from Zoho.