Brother Blood is a good, old-fashioned blaxploitation vampire novel, set in gritty 1969 Los Angeles, written by Donald F. Glut. Bill Cunningham at Pulp 2.0 says it much better than I do, so jump on over to his blog and pick yourself up a copy.
And I should mention that the gorgeous cover art is done by no other than faithful People Reviews reader, Nik Macaluso. Nice work, Nik. It's reason enough to pick up the book, if you ask me.