This is the source for my online guide to Ruby's C API. Visit the live site here.
Oh my god there are so many freaking guides to Ruby's C API. Why make another one? Because from what I've seen of the others:
And it struck me that all of these problems come from these guides largely being on media that do not promote community-driven updates. So I'm writing a new guide that doesn't suck and is on Github so you too can help make it not suck.