The subject of using SharePoint as an Extranet has come up in conversation a few times recently and I was wondering if the community pursue this option in their Farms? We used a very cool Extranet tool called Extradium on SP24, but I know there are other options out there (such as doing your own Forms Based auth). I am really interested to see how you do it? If you do extend SharePoint to your partners do you go for a completely separate Farm running SP Foundation? We also offer a solution to help manage third-party risk so would love to hear your thoughts on that.
The official line on licensing for external users has always been a bit murky and somewhat complex, that it tends to get simpler, at least with SharePoint 2013. I wrote a blog post about it at https://blog.riolinx.com/2013/04/30/sharepoint-2013-licensing-for-external-users-whats-new but there may be some subtleties I’ve missed. Feel free to correct me here if necessary.
