Well, I may be getting ahead of myself. I should stress that anything to do with a serious comprehensive Age List project should involve the other guilds (especially because they may already be working on them).
Here is my list of what kind of information would be in each Age's Entry of info:
Age Entry
In-game Information
Basic Age Info:
-Name
-Author
-Date Written
-Pictures
-Maps (links for GoC)
Status Info
-Age number/Sequence Prefix (see background-info below)
-Date discovered (discovery by DRC, ect.)
-age availability
-number of books/ownership of books (# of books may prove impossible though)
-DRC (phase-based) Status
-Maintainer's approval/status/rating (possibly the same thing as the DRC status above) (GoMa links here)
Age Feature Info
-Age Type? Or Guild affiliated with the Age(Er'cana is a harvest Age, Minkata a GoC age..)
-Inhabitants?
-Ecosystem & Plant life? (the D'ni Zoological Society comes in here)
-Moons or important celestial occurances?
-Weather?
-Terrain
-Extreme features? (like Katran's torus age in BoA)
Age Summary
-Age History (Teledahn's history of slaves and spore production)
-Story Elements (Sharper and Shroomie stuff)
-- This is where you would talk about the age and elaborate it's features and things that happened in it. like Kadish's vaults and how it used to be a mansion, but the trees basically destroyed the architecture. Etcetera.
(If the Guild of Archivists becomes an actual guild this is where they'd come in.)
Spoilers
This part wouldn't be shown unless you wanted to access this info. But this is where the GoG's walk-throughs would probably come in.
Behind-the-scenes info
-Sequence Prefix (this is a big one for coordinating Ages -- The GoMa should issue Age numbers)
-Credits (people who worked on the age)
-Length of Age development
-Concept Art?
(This last part is of course is mostly for our purposes)
Age List Organization
Of course the list itself should be organized along certain divisions that make sense, such as these:
Authentic D'ni Ages (Ages written mostly before the fall)
Transitional/survivor Ages (Gehn, Atrus, Katran, Yeesha..)
Human Ages (stuff written by Humans of course)
And It would be great to set the list up as a database that could have a few organizational and search functions. This way, if I wanted to I could list Ages in the order of how long it took to develop them. Or if I wanted to search for, and list all of the Ages written by a particular author (Kadish or Atrus, ect) I could do that too.
I should just add that I already got the domain name http://www.agedirectory.com. But whatever everyone in the different guilds thinks we should do for a centralized Age list I'm in support of and willing to use the domain name for that project.