Manga: Japanese or Japanese-influenced comics and graphic novels. Usually printed in black-and-white. See goodreads lists.
Light novel: (or Ranobe) is a style of Japanese novel typically not more than 40-50,000 words long, usually published in bunkobon size, and often illustrated. The text is often serialized in anthology magazines prior to collection in book form. See goodreads lists.
reviewers on twitter: @manga_critic, @mangabookshelf, @BrigidAlverson, @debaoki, @SPBianchini
publishers: Vertical Comics, Kodansha Comics, Yen Press