A few months ago I worked on a niche online directory and I just finished coding it. However, launching a directory without any businesses listed isn't very useful. Does anybody know where can I get or purchase a database of companies info like emails or telephone?<p>Also, could you recommend a CRM that tracks the emails that you've sent?
You might want to check out Google Places API ? I am not sure if your business type is supported but you can see that here:<p><a href="https://developers.google.com/places/documentation/supported_types" rel="nofollow">https://developers.google.com/places/documentation/supported...</a>
Apple Maps uses Acxiom, Factual, Localeze, and TomTom for small business listing. They have APIs and you can start querying their resources to build a database out for your local area.
Go offline, meaning that you should loo into non-web resources for this data. There are a lot of viable options, though all require you to input the data <i>by hand</i>.