Hey guys,

I wanted to know if couch has a way of automatically sharing an article on the owner's fan-page once it's published. I also need to bear in mind that previous modifications to the article shouldn't be shared again (it might mess up your facebook with a looot of posts of the same article).

Thank you! ^^

The way to do this is to create an rss feed (http://docs.couchcms.com/concepts/rss-feeds.html) for the blog/gallery/news-feed/whatever. There are services available that will keep an eye on that feed and automatically send new articles to a variety of social media. I'm very far from experienced in these services, so you'll need to do some of your own research, but I've used the free service dlvr.it in the past.

These services understand what they're doing and won't keep re-sending the same post if it gets revised. The problem you will run into is that a client will be working on an article, save their work, and - ACK! - the unfinished article goes out to their millions of fans! They have to remember to set the article to unpublished very first thing and they will forget at least once. (I've advocated previously to make unpublished the default state... nudge nudge.)

This is the general approach to take. Let me know if you need help sorting through the details.