Recently one of my clients, Jamie J. Johnson, and I celebrated our 10th FB anniversary!
I only started Life With Passion a little over 3 years ago, but Jamie and I have been friends since we worked together over a decade ago in our 9-5s.
Jamie became a 1:1 client because I let my contacts know what I was offering. Not because I "pestered my Facebook friends" with my business, but because she knew what I was offering and SHE NEEDED IT.
Don't ignore your already established list because you don't want to be "annoying." Who in your contact list NEEDS what you are offering? How can you find out?