When you chose the theme for your membership website, you chose it because it was something that you knew a lot about and/or were (and hopefully still are) passionate about.
I saw a sign in a convenience store not long ago that said something like .we strive to always be kind, considerate and helpful. However, it is hard to remember that the main objective is to drain the swamp when you are up to your ears (cleaned up) in alligators. That is true for owners of membership websites. It really is hard to stay focused on your objectives when you have so many things to distract you from doing what you need to do to keep your website focused on the main theme.
No matter how many distractions you have, you must still keep new, fresh, relevant and timely content on your website that pertains to the theme of your site.
Your ezines and newsletters need to be filled with helpful and useful information. Be sure to continually check for new products that would be helpful to your membership. New products come out daily and you dont want to fall behind.
You need to make full use of your autoresponder to keep your members informed and to keep them focused on the objective, as well.
Your blog, forum or message board topics can become unfocused and off-topic very easily. They must be monitored daily maybe even several times each day.