Bibiafrica

I find this label to be a great source of quality material: BibiAfrica. It's a branch of the Schneeball record label. Bibiafrica's manager and founder (if I got it right) is Dieter Weberpals (flute player, band leader, composer, producer, manager). They feature many important artists that perform the African music (Sona Diabate, Lenke Conde, Famoudou Konate, Jeli Moussa Sissoko, Barry Sangare, Djanka Diabate and many others).
They also feature a project called Argile, with an outstanding discography.

Bibiafrica and HeARTmedia have also found the HeART of music online store with many interesting recordings of African or African-related music.