FAWCO recommends:

Communicate with all your members via e-mail monthly, weekly, or even daily! FAWCO is now able to offer its member clubs a discount with Constant Contact, the premier mass e-mail handler.   FAWCO, and all our member clubs are eligible for a non-profit discount because of FAWCO's 501(C)3 status with the US government.  Click here to read more about Constant Contact and FAWCO’s offer:  http://www.constantcontact.com/index.jsp?pn=fawcoweb
It will take you right to the FAWCO page at Constant Contact.  The discounted price is just over $10 per month for the e-mail  - and with the discount an entire year is $126 USD ($72 USD if you choose to go for only 6 months). There is a trial period of 60 days - totally free!!!  On the free trial - one can only enter 100 e-mail addresses max for the free trial.  Try before you buy!
Credit cards are accepted, as well as US dollars for 6 and 12 month payments. Just click on the above link - and sign up your club - it should take about 5 minutes.  Then a member of your club with computer skills can help you upload your e-mail addresses and pick out the format that you want for your club messages and newsletters. Constant Contact also has a help desk, as well as some training videos.  The Constant Contact "help desk" is open 9am-9pm EST Monday - Friday (they are located in Boston).

Constant Contact has shared their presentation - tips on Online Marketing for Non-Profit , we think you  would find it useful:

 Constant Contact Presentation