CmisSync vs CoinTent

Synchronize documents between your computer and your enterprise file server (Alfresco, SharePoint, Documentum, any CMIS-compliant server)

It is like Dropbox for Enterprise Content Management!
For file sharing/synchronization, don't get a new server or rely on the cloud: just use your existing document management server.
Free and open source.

CoinTent is a digital wallet and subscription service that enables you to purchase quality content (articles, videos, etc.) for micropayments (below $1.00) across sites with one account and one click

Large content sites and publishers are struggling to monetize content online. Consumers do not want to subscribe to every site they visit to access quality content.Our offering provides a much-needed revenue channel for publishers, supplementing revenue sources like advertising and subscriptions, and fits in with demonstrated consumer behavior for content consumption.