getting back to my plumber example. only a plumber desperate for work would really go online to get clients. My plumber, when he's in my house, gets tons of calls from his existing clients and word-of-mouth referrals, jobs that he can choose NOT to take.
I just did a quick search on Twitter for my industry. Spam...spam...some blah by someone who'd want a discount on a $25 product (NOT my kind of customer) ...yet more spam...affiliates...amazon affiliates....more spam...marketing campaing for billion dollar corp for a $25 product ...more spam >>> USELESS
But I am willing to try one more time.