Hikaru no Go

I was adding my newest doujinshi to my spreadsheet when I discovered The Doujinshi & Manga Lexicon, which is a pretty sweet site. I was thinking of adding my entries to it, but then I wondered if there were other doujinshi databases out there, or even one specific to HikaGo. Are there any sites people use for reference purposes, and what do you think are their pros and cons? I think if we can find a site a bunch of us like, it would be worthwhile to buff it with all the information we have (sort of like the drive we've been doing to up HikaGo's fic count on AO3.