I ask a lot of people if they use a CRM? The answer is invariably no.

CRM is Customer Relationship Management - a tool for tracking interactions with customers and contacts. It's an address book, which tells you who does what. It should be as important as email and is a valuable tool for planning business.
There are many variations of CRMs. Some are sales driven, others about connecting with contacts so you can see where opportunities lie. They can allow tracking of orders for customers and remind you when to send out notices and invoices.

Read the whole story on Andrew Nimick's technology blog.