Promoting website about classical music we wrote over 600 letters to nonprofit music websites which belong to musicians, composers, music schools, enthusiasts, and libraries. Each website we picked contains some kind of directory or link page with related resources.

  We asked webmaster to provide a link for our client site who collected information about 2000+ composer and wrote over 20 000 pages of content over past 10 years.

  Result:
  40+ backlinks.
  1 angry email telling that we are spammers.
  70+ asked us for money or link back.

  Guy who has “made in 1994″ 3 page site asked $100 for a link. Too bad that so many people are greedy.