Word of month referrals are great. Nothing better than your clients giving a favorable testimony of your product/services! But as many have mentioned, word of mouth advertising is very slow. I do not have a high turnover of clients or repeat clients. My clients stay with me for years and the decision to retain my services is a well-thought out one. I am a Certified Quickbooks ProAdvisor and most of my leads come from the Find-A-ProAdvisor website. My prospects have a specific need (bookkeeping/tax) and go to the source to find it (through the Quickbooks accounting software). Many of my current clients have given me reviews which helps potential prospects as they evaluate my services. Each business is different in how you attract your clients/customers. But marketing your business in the avenue that works for YOU needs to be a daily goal so that you can scale and grow.