Short answers, pulled from the story.
Jim Kaposztas created the very first anime music video in 1982. He was 21 years old at the time and connected two videocassette recorders to edit scenes from Star Blazers to the Beatles song All You Need Is Love.
The main editing styles include raw editing, FX editing, timing editing, flow editing, animation editing, masking, and 3D editing. Timing editing is the most common technique where editors align footage with lyrics or beats to create harmony.
Western fans often experience a more purely visual connection to the material because they cannot understand the Japanese language. Cultural upbringing also plays a role as Westerners are encouraged to grow out of cartoons while Japanese natives grow up with animation as a constant companion.
Wind-up Records contacted the administrator of AnimeMusicVideos.org in November 2005. They requested the removal of content featuring the work of the bands Creed, Evanescence, and Seether.
Lawrence Lessig mentioned anime music videos in his talk on the 3rd of October 2006 during Google's AtGoogleTalks Author's Series. He used the medium to illustrate how fans can transform existing works into new art forms and challenge traditional notions of copyright.