What do you use for your "circulation management" product/software currently or in the past for maintaining your mailing list?
I work for a news journal who has been using MS Access table to maintain it's list. It has got very complicated because we are now offering other services and really need something to maintain not only our newspaper by our eNewsletter list / Digital version of our product. And we are planning to launch a paid subscription product to a sister site we are in the middle of putting together.
