Earlier, I shared OHM: Early Gurus of Electronic Music; now it's shared at themoreyouthinkaboutit.blogspot.com - on mediafire, and it's mp3 instead of m4a.
Also, here's more recent stuff I am listening to:
Earthless - Rhythms From A Cosmic Sky
Reviews: AMG, 1, 2, 3, 4.
megaupload or rapidshare pt. 1 and pt. 2
Psychedelic/stoner metal, 40 minutes of non-stop riffage.
I've been looking for Baden Powell's Os Afro-Sambas for a long time, and now it's available at somdoroque.blogspot.com. The description is in portugese, so here is an article about this disc. In brief, this cycle of songs was insprired by the Afro-Brazilian spiritual tradition Candomblé and the music of samba; it was written during a three-month long drinking binge with the famous poet Vinícius de Moraes (who wrote the lyrics). The album was rerecorded in 1995, but the link is to the original one.
A great afro-caribbean funk band, Cymande, at the consistently excellent Lost In Tyme.
And the best find of them all, Hazmat Modine - Bahamut. The band is driven by a pair harmonicas, backed by tuba, drums, guitars, and trumpet, with the addition of special guests playing exotic instruments such as the claviola, the cimbalom or the Chinese mouth-organ, the bass sax and the Sarusaphone. @ This is some really crazy far-out genre-crossing stuff.