Is Content Management a solved problem?
davi: I did some looking around a while ago and couldn't find anything that gracefully gives users ACL-like, fine-grained control over who can see which of their postings.  This seems like a clear hole in the space, too me.I'd like to be able to create a group of users -- let's say by email address, so they wouldn't even have to be registered with the site at the time I created the content -- and then be able to post specifically to that group.Drupal Organic Groups gets close, but sort of misses the mark -- I don't want people to have join a group, I just want them to see content I've targeted to them when they come to my page on this hypothetical site.  Also Drupal's permissions system seems sort of disjointed -- various plugins can too easily collide with each other's customized permissions schemes.  (Caveat: this based on reading, not implementation, so maybe it can be done.)Also -- I want this to be something I can run on a server I own.  I don't want to put content I care about in the cloud.This idea has been kicking around in my head for a long time now.  If anyone knows of a CMS that lets you do this, I'd be interested.  Someday (like when I've finished with grad school?) maybe I'll scratch this itch...