As a Startup, you are new in business and with less experience, you are looking for your prospects. Starting from zero seems difficult. Then startup starts looking for customers by randomly targeting anyone from the population and these prospects waste a lot of energy resources and time as they have a very minor chance of conversion to become customers.

It is definitely a large marketplace in the online community especially if you have an internet business that you cannot ignore. Thousands even millions of consumers on the internet that you can tap.