428 ~Fuusa Sareta Shibuya de~ is VN of the Month. But since it's translated already, will review Eien no Owari ni . Micchi focuses mostly on gameplay visual novels, but there are lots of comments to enjoy.
With gameplay pieces taken aside, there's nothing else to call a VN of the Month but Shikkoku no Sharnoth -What a Beautiful Tomorrow- . Still don't consider it a masterpiece, though. I'm taking Kokorono for review because... don't know why, really. At the very least it poses some mystery for me. Does not look like micchi had a favorite this month either.
Yay, I finally reached the point where micchi started his blog. It includes many games from August-September with super brief commentaries and no synopsis, but it's a start. Volume 7 is VN of the Month, reviewing it. Concerto Note is another masterpiece.
Another August, and another record of over 140 visual novels. Amatsukaze contains serious gameplay elements, so I don't include it in the race. I'll name Koisuru Otome ~Shikigami 2008~ VN of the Month, but will have yet to decide whether it's a masterpiece.