Hey it's Nephery here.
The Gekkou Side Stories have both been linked to the library...
Well at least one of them is, the other one broke somehow. Of course, I can't do anything about it and so I'd like to thank Armaell for all his hard work!
For those who were wondering, yes, for the sake of completeness, I will be making an EPUB for the main story. But right now, Baka-Tsuki's generated EPUB for it is fairly decent. Which means that this will be a fairly low priority (i.e. don't expect it anytime soon).
Also, I recommend that you read the side stories AFTER the main story. They do contain some spoilerish content.
Other than that, enjoy the side stories!