Ther eis alist of the publishers (incl the japanese ones) that are pursuing the anti-scanlation proceedings. You can read the article and see the list here:
U.S., Japanese Publishers Unite Against Manga Scan Sites (Updated) - Anime News Network
Mangafox and OneManga were specifically mentioned in another article elsewhere about this, and scanlators have begun going to the forums there to request their scanlations removed in order to try to avoid becoming embroiled.Aarinfantasy works, licensed and unlicensed, are up on the sites, and they won't remove it unless the scanlator themselves request it via the forum. Just a heads up.
From aarinfantasy: Noted about this issue since yesterday the news came out, I don't think Aarinfantasy will be doing more scanlations. We have not been active with that anymore. Thanks for the info.