Thanks, gws, for the new thread.
Primary sources were the ancient list from Kristen England on MrMalty.com, and from there dozens of hours of digestion by myself and by suregork and qq on the suregork website of the Gallone and Fay genomic research results. One magic bullet was when suregork figured out that nearly all the White Labs strains were numbered in order in the Gallone study. Without that magic key, we wouldn't be talking so much like this here today.
Beyond all those sources, I've brewed a good ~150 batches with many many different yeasts over the years, and so I've incorporated some of my own real-world experiences including attenuation and flavor data to help figure out which ones were which. And beyond that, well, I used my own intuitive thinking to try to figure others out. Am I right on all my guesses? Hell no. Am I pretty damn close on most of them? You be the judge.
The color coding means essentially nothing. It had some meaning to me personally once upon a time, but now, not so much. I should probably clear all that out to avoid confusion. The yellow ones are slightly useful in that they are all 50/50 odds of one match versus another.
Special note that I should add to the sheet: These matches aren't all 100% identical. Divergent evolution will happen when multiple manufacturers source the same yeast strains. And some might have sourced theirs 50 years ago, some 15 years ago, some within the last couple years. I have no way of knowing when they sourced their stuff, and frankly, nor do I care. I figure, sometimes good enough really is good enough. And that was my goal with all of this: Good enough. I thought it was at a point that's good enough for most intents and purposes. Is it good enough for you? Again, you be the judge. I'm just sharing because I think it's the right thing to do.
Sorry that I don't have a better website or blog site to put it on, and I don't intend to. Maybe one day. I dunno. I'm just a dork. I don't really care to publicize it or fancy it up all that much. It is what it is. Take it for what it is... one guy's obsessive intuitive list of stuff that might be equivalent, and hopefully a vast improvement of what was previously available out there. That was my selfish goal. If others can benefit, great. If not, oh well.