People should not use free business mailing lists for their online marketing. The basic question must be asked. They are free. They are so valuable if you can make money from them. These are not free items. It is because nothing in the world is ever free. These lists are available for free if you sign up to their service and provide your email address. They will give you between 1 and 10,000 free business mailing list, which is quite likely. These lists are products of the same process that are spun into a database that is then given back to the consumer.
They do this because they have enough email addresses (often a few thousand) to sell to large spam networks around the globe. A database with 1 million valid email addresses costs anywhere from a few thousand dollars to tens or thousands of dollars. You also get the multiplier effect because of the thousands of spam networks around the globe. This is a scam. It does not care about your interests. Another example would be companies that dump information all over the internet and then offer it to you as a value-added service when you buy into their product. No matter what method you use, free mailing lists for business are not the best option medical marketing.
These lists are not tailored to particular markets and are created without any prior knowledge about your product. If you sell medical products, for example, you will need to identify a list that includes doctors, pharmacists, specialists and vendors at clinics. This is a very specific list of people and companies that are likely to purchase your products. Another example: If you are selling skin products to treat a range of diseases, such as eczema, Chlamydia, or psoriasis, then you will need a list of people with these problems. If you sell property, what about the list? A list of people in a certain income bracket that are well-known for their investments portfolios is necessary.
These demographics are not possible to obtain from free business mailing lists. Because you deal with different markets and products, quantity is not important in telemarketing or direct marketing. You should not base your income on a single strategy. Be specific, targeted and safe. Direct marketing is only half of the battle. You will be able to make a small investment and get a higher percentage of returns.