I’m reposting this list of links to Hypebot’s "100 Free & Affordable High & Low Tech Music Promotion Tips" because the series is now complete.

1 to 10 ~ 11 to 20
~ 21 to 30 ~ 31 to 40 ~ 41 to 50
51 to 60 ~ 61 to 70 ~
71 to 80 ~ 81 to 90 ~
91 to 100

Definitely worth a good look.