Storybricks, now fundraising on Kickstarter, is an AI project to allow users to create generated stories in an MMO environment. The project provides an authoring tool for establishing characters’ desires, relationships, moods, and basic conversation:
The engine then brings the results to life within a 3D fantasy kingdom. The Storybricks team has posted a public demo that you can try out for yourself.
Playfic, Andy Baio and Cooper McHatton’s website for playing and writing Inform games online, has had a successful three months, with hundreds of new games posted and (collectively) around 85,000 play sessions. Now Playfic has added the ability (crucial, in my opinion) for authors to include extensions from Inform’s extension site, meaning that supported games can be more complex and make use of a wide range of pre-existing tools.
Cover Stories is a minicomp pairing artists and authors of interactive fiction. The first phase (now over) collected dozens of pieces of cover art; during the second phase (now running), authors may select one of the submissions and write a short game suitable for that cover. There are still some cool images unclaimed. Rules and details may be found here.
Emily Short's Interactive Storytelling 
This is very cool and when I’m not so tired, I’m going to spend some time checking out all your links.