As often happens, the acquisition of my Catrike Pocket has caused me to begin exploring online for information about my particular trike, available accessories, and recumbent trikes in general. This has led me to a great many places, but one particular site is a treasure trove of information - BentRider.
BentRider is a recumbent bike and trike (and it appears, mostly trike) news site with a deep archive of back posts. It would be a good first stop for anyone interested in starting to gain information about these machines, as well as trying to get information about the machine one already has - for example, I was able to sort out information about the specifics on my particular trike by finding the post for Catrike's 2012 release notice.
Going through that archive will also periodically allow you to come across little gems like the video below - a 12 minute tour of the Catrike factory in operation. As BentRider notes in their original post, there is no narration - "just pure trike-building porn". Watching it reminds me a little of the old-style factory videos - where the camera followed a piece through the production process - that used to play when I was a kid.