In those HitchHiker's Guide Offices, you have, on the top floor, the Edited Guide. People submit factual entries for inclusion for it. some make it, some don't. Those that don't, either get moved to the flea market, which is just a collection of rejects, dropped to the Underguide, or away from the office block itself (ie away from the review forums).
On the bottom floor is the Underguide, where people submit entries that aren't ok for the Edited Guide. Once again, some will be rejected and moved to flea market or away from the officer block.
Now, on the middle floor is where I consider the Spaced Out Guide to be. There are no rejections here. People can submit anything, fictional or factual, and it will be accepted. From there, either I will recommend to the author or EG/UG scouts can post to the bottom of an entry suggesting it be submitted to either the EG or UG, depending on type of entry. The Spaced Out Guide becomes a place where guide entries can be submitted to become a part of something, and from there their guides may become part of something bigger and more official.
The Spaced Out Guide will also be a place where people can submit the stuff that did not make it into either the EG or UG. The Spaced Out Guide becomes a hub for entries.
Also, the Spaced Out Guide becomes a place where the CAC could find entries, but also perhaps the Post, who could have a Spaced Out Entry per week in there or something.