Shark CRM is a CRM tool that works where you are - inside Microsoft Outlook. It utilizes the Exchange database (the organization backbone of Outlook) so you don't need any database or any change in your corporate computer system.
Shark CRM was specially designed for the small and medium business (SMB), in which each sales opportunity is primary managed by a single salesman. It implements unique "automatic logging to the CRM", which results with accurate and updated data in the CRM, that makes it a real useful tool.
Download is free, but registration is required.