This is late (four years!) but I saw it and thought I'd update:
There is a Hive wiki now. Actually more than one. In the order they "appeared", I think:
"Hive Wiki" at https://hivewiki.netlify.app The Hive Wiki was made by me but anyone can download the data from that page and going to "backup".
"Hive Learn" at https://hive-learn.wiki
"Propolis" at https://propol.is Propolis is rather new and is unique in that it is Hive-based. That is, sign-in in done through Hive and data storage is on the Hive blockchain.