Review: K-ON! – AniB Productions

A charmingly cute and energetic anime classic.

K-On! Complete Series (Season 1,2+Movie) Blu-Ray [UK] - I was excited for this release but it ended up being really dissapointing. (thoughts in comment) : r/Bluray

The Visual Medium: K-ON! Movie (Anime) Review

MUD Journal

Anime Review: K-On Season 1 (2009) - HubPages

KCC Productions

The Visual Medium: K-ON! Movie (Anime) Review

K-On! (Review)

K-ON! - Anime Review

K-On! - Anime - AniDB

K-ON!: Ultimate Collection Blu-ray (けいおん!)