this blog is great. i turned onto this one several years ago and remain a bit astounded at all the cool music they keep writing about.
here is the link: cassette gods
i constantly buy tapes that are recommended here. usually they are only 5 or 6 bucks, plus you get the download. most of the recordings are also on bandcamp so you can preview the music easily. this music is waaaay below the radar. you have to check it every couple days because stuff is added on there regularly. you know that question that sometimes goes around "what happened to music?" "where is all the good music?" "how come there isn't anything to get excited about anymore?" well, it's all here, proliferated. have fun.