Being a membership professional at heart I know that some times "customer" can be a bad word. In my opinion all associations have customers and that includes our members. If you substitute "member" for "customer" in this post you will get some great tips on how to keep your members coming back.
Having a realistic, achievable membership goal based on your industry, and human, financial and technical staff resources is critical for any association. This post does a great job of explaining why.
Although I am still not convinced that bringing in younger members is as critical as some think it is I do believe that there are many situations where younger members are vital to an association. Since there are many good reasons for bringing in the younger members we need to make sure we are doing it right and giving them reasons to join. This post gives some good suggestions on what you can do to attract younger members.