as www.BestMailing.com or www.MailersSoftware.com, which have lists of all kinds of doctors that live across the country. One list I looked at was for the state of Texas, which included 30,091 medical doctors. A list broker can help you find the type of list for which you are searching. However, list brokers usually make their money off of large mailing lists and may be less helpful but they might steer you in the right direction. They eat, sleep, and drink mailing lists.   o NOTE: Every one should have a good list broker. My personal list broker is Gil Terriberry and his company is Direct Contact Marketing Group and he can be reached at 877-262-8105 or you can email him at dcmg@dcmg.com.   WhatIf You Cant Find a List? If you cant find a list of your target market then youll have to do lead generation to build your list. This process can be expensive and time consuming but once you have the list, its yours to keep (rather than renting lists).   Lead generation usually starts with placing advertisements in other media (i.e. newspapers, Internet, magazines, newsletters etc.) that target the interests of your niche. The advertisements should entice readers to call up and ask for something free (or very low cost). This allows you to get their contact information and build your list.   For example, if you were a sauna dealer targeting people with heart disease (saunas are known to improve blood flow to the heart) sufferers you might write up a news article about recent studies that have found that saunas to help reduce the risk of heart disease. At the end of the article you might offer a free report about how saunas improve your health that the reader can get by calling a phone number. Below is an example of what that ad might look like.     Paid Advertisement "The Japanese Secret for Decreasing Heart Disease" Researchers in Japan have found that taking hot saunas help reduce thickening of blood vessel walls cutting heart-disease risk. Researchers assigned 25 men with at least one risk factor for heart disease, such as high blood cholesterol, diabetes or a smoking habit to 15-minute stints in a 140-degree sauna every day for two weeks. For half an hour after each episode, the men rested in bed, covered by blankets. They also had the thickness of their artery linings monitored by ultrasound. Just two weeks of daily sauna treatments reduced thickening of the endothelium - the inner lining of the blood vessels - by 40 percent! Thinner blood-vessel walls means less chance of developing blockages, which raise the risk of heart disease.