(@mikeschinkel: Before edit title was: is there a plugin/set of plugins for providing subscription to digital assets on an individual or large scale?)
I’m trying to set up a site where a substantial amount of PDFs will be sold both individually and a subscription will be sold to a library – so anyone from that library can visit the site without a paywall (so, based on IP). does anything exist for wordpress like this? bonus points if its free/open-source and not paid…
For digital assets subscriptions most people are using Membership Plugins. There are free membership plugins and commercial membership plugins, and the ones IMO with the most traction (i.e. users and support) seem to be the commercial plugins.
List of Membership and Content Protection Plugins
Here are a list of membership plugins that I’ve found from my past research. Not all provide
subscriptions to digital assets but most do. I’ve included the full list for others who might be interested in the full list of membership plugins. (I’ve created my answer as a community wiki if anyone wants to help segment the ones that provide digital asset protection and download from those that do not.):
In alphabetic order:
I know that’s not many options, but maybe it’s enough? 😉
Membership Plugin Articles
And here are a few articles you might find helpful:
Hope it helps.
MemberWing allows to build digital online stores with full link sharing protection. Meaning if someone purchased digital product and sent download link to his buddies – they won’t be able to access product unless they are premium logged on members as well.
No so with other softwares – usually once download link is discovered – the whole world can download it for free.
Additionally I can easily modify MemberWing to allow premium access only from specified group of IP addresses.
Let me know if you are interested: http://www.memberwing.com/contact
Gleb