Go forth, and enjoy. Totally awesome overview of all things electronic. House, Trance, Hip-Hop, Jungle, etc. This is what all encyclopedias and/or history classes should be like. Follow the lines for at least one of the sections / groups and you can hear a lot of what he’s talking about. It was tough for me later on because I was experiencing a music-overdose… will definitely have to revisit this later.
I’ll also take this moment to recommend the AllMusic guide, whose “related artists” feature and “recommended picks” are actually quite good when researching music.