Internet. I always ask how they heard about me. Most of them just googled and said my number comes up first. I post 18 different ads on CL. However, seldom does anyone call me from CL . I also run a slew of ads on Backpage. I only seem to get 3 or 4 responses a month from Backpage. I normally get 4 removal request a day, and of those 4, three googled search and 1 CL.