As this Forum grows (and you must admit, the participation here is fantastic!) it gets harder and harder for the "newest" user that arrives to locate solid resource material on their specific topic(s) of interest. In the HPD forum alone there are well over 1,000 topics, with each topic's thread typically consisting of 20 or more posts - that's over 20k posts! And, it's rapidly growing.
The Key Word / Specific Author Search facility is outstanding, and quick, but it can generate a ton of false positives when searching on ambiguous or common language search terms. Going through those large return sets takes a ton of time to find exactly what you are looking for.
Best solution is a controlled vocabulary of subject headings (single and multiple word terms) and thesaurus, but that takes a panel of experts who know the entire landscape up front, each willing to donate a ton of time, participate in ample debate, adhere to production cycles, stay right with it for constant updates, etc. It's never perfect and must be constantly updated.
However, exerting that level of effort pays lasting dividends as control is gained over the raw material. The knowledge becomes much more refined, and the individual trees in the forest can grow taller, built on a better foundation. (Yet they don't grow to the sky because chaos and entropy creeps in eventually!)
The result of that effort is a tidy thesaurus is published by the experts. Its used to direct the "up and coming" experts into what is already historically known. It helps guide newbie users with things like:
- Broader Term (BT)
Narrower Term (NT)
Use (USE) / Used For (UF)
Related Term (RT)
Fully recognizing that a Forum is not a Wiki, and its really built to support a community of users in real time, and will never be a good reference library, and trying to adhere to the KISS principle (no need use for sledge hammer to open a walnut...), here is a quick and dirty start, covering only a tiny portion of what is available in all these posts.
Topical Index to HPD, including links to Topics (Threads) .