Well, it's begun...So far I've noticed that series licensed by Viz have been removed from MangaFox. Good for Viz! I know some of you who read scanlations are quite upset and I feel bad for those of you who cannot access these series without scanlation. Viz, though, has to protect its market in the US.
Hopefully, once the manga aggregators purge their sites of licensed series, the pressure will be relieved and we can continue to enjoy series that are new outside-of-Japan or too niche-y to license outside of Japan.
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Update: It's interesting to see what manga/manhwa rose to the top after of the popularity stack after MangaFox removed the Viz licensed titles. Most of the top series are Shoujo. Honestly, this seems quite healthy to me because many of these titles I've never explored and now that they are exposed, maybe I'll give them a read.