Here are links to various websites that are of relevence. Some are just worth checking out:
SoundCloud – An excellent site to find non-commercial music and share your own. All music is streamed much like youtube. Tracks can be downloaded.
Who-Sampled – A website I found whilst researching for my masters project. Rather interesting to find who sampled who in their music. Some are quite suprising.
FreeSound – If you’re wanting to get into post-production and video sound design, this is a great website. Thousands of free sounds uploaded by users for use in whatever you want.
Overclocked Remix – This could well be my favourite website ever. Thousands of high quality video game remixes all produced and performed by video game fans. If you’re looking for a great community to share your love of video game music, this is the place.
Nitro Game Injection – Another fantastic site that share a love of video game music. They provide regular podcasts in which they discuss and play video game music
Vampire Variations – The official website for the fan-made remix album. It was created in celebration of Castlevania’s 25th anniversary.