E-mail marketing campaigns can be one of the most cost effective tools that you can employ. They cost very little to create / circulate and can if properly designed generate new clients for your business. One effective method of using e-mail marketing is to design a high quality HTML e-mail targeted to a specific group of clients and send out small quantities followed by a telesales campaign. The email works as an excellent ice - breaker overcoming the need to make a cold call.
A mass e mail campaign can be measured, allowing you to see how many recipients bounced back, read the email, deleted the email or forwarded it. One very important thing to bear in mind is to ensure that you follow data protection legislation, there are many laws governing the use of databases and you should be aware of these before sending out a list.