I understand the concern. We'll try doing something about that. That said, single page on GitHub for the moment means (1) discoverability directly on github.com, which helps everyone and (2) browser search on the whole guide (which actually is more helpful than you might think!).
Completely agree, once I discover a guide like this, I bookmark it, come back to it, and really value the ctrl-f-ability.
I was recommending the one-topic-per-page idea for others who haven't yet found this nugget. I think a lot more people will discover it and benefit from it if they are finding it from specific google searches.
I know HN can be a source of a lot of unfounded flyby critiques, I dont want to contribute to that trend. I see you have a pretty good contributing guide, maybe I'll try and submit a PR with a solution in the spirit of Hacktoberfest!
As I'm sure you're aware, a lot of documentation is made available in several formats, such as 1) single page HTML, 2) multiple page HTML (e.g. one page per section), and 3) single PDF.
The different versions are automatically generated from a single common source but that would probably require a major change in how you create your guide and so may be more work than you want to take on.
To illustrate why this is useful, I'm a network engineer who primarily works with Cisco gear. Cisco has an absolute wealth of information -- product manuals, configuration guides, etc. -- accumulated over a couple of decades spread out across their web site(s). Unfortunately, their web site team likes to change things -- A LOT! -- and pages "move" frequently and it's often impossible to find them again. Because pretty much everything I'm interested in is available in PDF format, I save these versions locally where I can find them and refer to them later. Quite often, the times that I really need to look up some obscure feature are times when I am somewhere that either 1) I cannot connect my laptop to the network or 2) Internet access is unavailable, heavily filtered, or outright prohibited (of course, that's probably not going to apply for someone working with AWS.)
Regardless, you've put together a wonderful, comprehensive resource here. I'm a "minimal" user of AWS (primarily S3) but I am familiar with the different products and you're done an awesome job of summarizing Amazon's "dense" documentation down to its key points.