Mechanics... Yes, I currently have 3 1/2 Monster Manuals in there (Planning on more too) and a few other incidentals. I plan on putting in Traps, pricing for Inn's, Food etc for average prices, and some spells.
Currently no "Rules"... But yes Mechanics is the place for it.
Interesting. I started with the rules. I put in the D&D basic rules, but kinda wish I didn't. I need to go back and adjust all the link rules for those article names. Having all those common words as article names makes saving content a slog as I have to tell RW to ignore certain words when creating links. Also, I just don't find that I look that much up. I would feel differently if I could have the entire PHB and DMG entered, for swift looking up less-commonly used rules.
It will be interesting to see how they name articles for massive rulesets like Pathfinder. If they don't use some special naming convention, I worry that it will break the linking.
Unlike you, I stoped adding in monsters, unless they are custom or I need to record campaign-specific notes about a monster. I just use hero lab and the books.
Magic items, poisons, diseases, random treasure tables, and other game aids are for more useful references to be able to link to and I rely on these extensively.
Herolab... I only have a few things linked to HeroLab. Characters and NPC's.
I link as I prep. I create HL portfolios for encounters, NPCs, and beasts for specific scenes as I prep. When things go sandboxy, however, it would be nice to have HL portfolios linked to monster articles for all monsters. I would glady pay a lot of money to have the Monster Manual and Kobold Press's Tome of Beasts in RW with HL integration, but I don't have the time to do it myself. Barely have enough time to write and prep for adventures.
Maps... I have created all the "World" maps and are my own creation... I think there are 2 maps in there that I did not create. Yes I love Maps...
If you are on FaceBook:
https://www.facebook.com/TheMadCartographersCartography/
is my Cartography page. (I have not done anything in some time due to working 55-60 hours a week for months now...)
I don't have a FB account but from what I could see from your pages public content (and your video showing your realm), I would love to see more.
Also, I have EVERYTHING revealed. I am hoping to sell my Lerchanth once we can do so.
I am hoping to make a new video this weekend to show off some of the new stuff I have added.
That's great, best of luck with that. I could definitely see buying it. While I have my own campaign world, it would be nice to pick certain towns, merchants, NPCs, etc. from other campaign worlds that I like copy to my realm.