30% from mailing lists where I was already an active member. 30% direct referrals from people I knew in field. 30% referrals from when I would find people not i

30% from mailing lists where I was already an active member. 30% direct referrals from people I knew in field. 30% referrals from when I would find people not interested in product, and ask them if they knew anyone who was interested. 10% media coverage of product. Super labor intensive.