We are undergoing infrastructure changes in our organization and it would be very useful for our department to post new versions of software on an internal website. This can include documentation as well as the installation binaries. OSIsoft has a very good website (for my needs anyway) in their technical support area. For example, here's the link to the PI AF SDK collateral:
Our TS website infrastructure is heavily customized with different components for managing downloads, documentation and other content. Static pages and KBs are pulled from an internally managed wiki and download content is managed in a custom-built database on-prem.