American Alliance of Museums
Museum magazine looks at the pros and cons of marketing the museum through Groupon. The article suggests that while membership is bought seemingly easy by this method, long-term engagement is lost, and there may be results that alienate, demoralize or penalize current members.
American Museum Membership Conference
American Museum Membership Conference shares a handout from their 2011 conference that offers some technical guidance on developing member cards.
Network for Good
Network for Good offers a plain English article that addresses membership dues and tax-deductibility.