Fanlore is a Wikipedia page created by fans from different aspects of pop-culture. It is a great place to learn the history of fanfiction, fan-terms, genres, different perspectives (etc.) created by the community.
The English version of "RocketNews24," it is a Tokyo-based news blog about Japanese Pop-culture but also features localized news for Japan, China, Korea, North Korea, Taiwan, and USA.
Chris Beveridge has been a consumer of pop-culture and entertainment for a long time. At one point he owned the pioneering site AnimeOnDVD.com before it was bought out and merged with the now defunct Mania.com. He wrote many anime news and reviews before starting "The Fandom Post."