Big Dog and Little Dog productions

Whilst googling I have come across a comprehensive site that inlcudes all things 'Training Theory', from learning styles to MBTI, with a dash of coaching to boot. This site is a rabbit warren of information & the author/producer, Don Clark maintains the site with updated articles every few months.
Clark is a prolific "referencer" who talks about what others have talked about. As a result each topic offers many further references, therefore a very valuable resource for research or further reading purposes.
At every opportunity Clark includes a 'concept map' to guide you through the rabbit warren of topics. These colourful guides take you on a roundabout journey of acquiring information rather than a linear start to finish approach. It can be frustrating as you question whether you have reviewed each of the topics on offer, but you need to resist temptation to click on the array of further references & navigate back to your original concept map which will highlight the topics you have covered. They take a bit of getting used to but he also offers a Content page which offers a more linear approach to the topics covered in the site.
Clark's 'About me' page provides insight into the man behind the thinking & theories. He is, obviously, a dog lover with a US army history who now works as a consultant (in learning & performance) & designer (of e-learning & training platforms).