Which is best way for earning from Automatic Resume Submission Software?

We have developed a Software for automatically posting Candidate Resume to around 50 U. S Job Sites automatically.
Now I am looking for a way for earning from this Software. I am exploring different ways, and I would like to know which is best way, or whether I need to continue all the ways.
Let me explain my approaches.

Selling our Service to individual Candidates using PPC campaigns (e.g Google Adwords). i-e The candidate will enter his Resume details in our Site, and our…

Which is best way for earning from Automatic Resume Submission Software?

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