These are quite inexpensive to purchase mailing list as they are quite general with least effective skills. But, to sharpen up your focus in the market, you should go for the targeted lists that allow you to narrow the field of contacts to only those individuals who actually match your requirement. The more targeted your approach, the more clear profits you will come across.
Under the scenario, if you run a business that sells to another business, then targeted lists prove to be the most effective one. It will actually allow you to focus entirely upon the targeted customers. However, if you find yourself under confusing state mailing list of mind or don't find yourself familiar with the strategies, then you can undoubtedly seek help from the brokers who can walk you through the procedure and help you focus on your targeted area.
However, do try to check whether the list provided by the broker is updated or not. It is so, because an obsolete list will not prove fruitful to you as the targeted customers might have relocated or have changed their contact numbers or might have mailing list died. Thus, in order to maintain your reputation in the marketing industry, try checking all these aspects before buying the mailing list. With the advent of mailing lists, it is illogical for any business to not to use them, especially if its mere survival is at stake.