So Facebook announced today that its Groups pages will look more like Fan Pages... meaning you'll be seeing Group updates on your News Feed. It's a slow roll out, with only a few members seeing the changes today.
So what's the difference now between a Group and a Fan Page? Not much.
Here's how Facebook differentiates it:
Keep in mind that while Groups and Pages now look the same, they still serve different purposes. Groups are for fostering member-to-member collaboration, while Pages remain the best way to broadcast messages to your fans if you are a business, organization, public figure or other entity.
Niala and I have been discouraging people from starting Groups, because it ends up being something that most people join and then forget about -- although these changes mean Groups will probably be more active. But the bottom line is, if you're all about broadcasting messages, then you're still better off with a Fan Page.
If you created both a Group and a Fan Page that serves the same purpose, it's probably best to delete the one that doesn't best fit your purpose, so newcomers won't be confused by which to join since they'll look similar.