Please review my web app, Docley
evandavid: I think there are small/medium companies out there (similar to the one I've been working with recently with around 40 employees) that require a really simple self-hosted document management system. You might say that these companies should have a full blown CMS implemented, but often times all they want is document versioning, and CMS solutions like Sharepoint are expensive and can be confusing. There might be a market there but it would be hard to identify the individual customers amid a generally well-served market.  The company that I was working with literally used a network share with documents organised in folders and renamed for each version. shudder. They were looking at Alfresco when I left, but I doubt they'll get the project off the ground - it's too big. If this was a really really simple SELF-HOSTED package, I'm sure they would go for it. Note: Self-hosted, not cloud based. It would need good backup features and the ability for clients to add their own ssl certificates.Just an idea, based on observations without research.