Note 2010/06/09: Since I wrote this post, our client has sold her site to Morningstar, which has replaced the subscription area we developed with their own, Windows-based subscription service.
Our latest work involves development of a subscription system using WordPress on the popular financial blog, Footnoted.org. The requirements of the system were as follows:
- A subscriber registration and payment processing interface
- System tracking of subscription expiration dates
- Download management allowing the administrator to easily upload files as well as restricting file downloads to paying subscribers only
- An email notification sent to paying subscribers when a new publication is available

