This keyboard lexicon is a tematic glossary of 700+ keyboard related terms. If you are new to keyboard building, this may be useful to get into the hobby.
A good keyboard is split or fixed-angle. Period. Here is a list of split keyboards I'm aware of. Filter keyboards by development stage, size, features like Bluetooth, staggering etc.
The GOLEM evolution model
This is an evolution model for optimizing logical layouts in Hungarian. Letter frequency, bigraph and trigraph statistics. This was my original area of interest and the main reason to start this site.