What system do you use to keep track of your business contacts? -

I would like a program where I can easily send clients e-mails, letters, form letters, take notes, keep history and other basic business requirements.

Mozilla Thunderbird provides the email and address book functionality. You can download Mozilla Thunderbird 2 free of charge from here:http://www.mozilla.com/en-US/products/do��Mozilla Lightning extension to Thunderbird has calendar and task management features. By installing this extension, you will have a full fledged Personal Information Manager (PIM). Lightning version 0.9 works with Thunderbird version 2 (it doesn t work with the new Thunderbird version 3).Once you have installed Thunderbird 2 successfully and configured it to work with your email server, you can download the Mozilla Lightning 0.9 add-on free of charge from here:https://addons.mozilla.org/en-US/thunder��Both these products are from Mozilla, the same company that provides the popular Firefox web browser.