marketing for digital product like ebooks

I am looking for an experienced professional to help market my digital product, like ebooks. I anticipate the campaign to last 1 month, beginning immediately. I am willing to work within a budget of under $500 for the duration of this campaign. The type of marketing I require is specifically focused on Social Media. If you have the skills needed to make this venture successful, please get in touch. This is an urgent undertaking; therefore, I look forward to a swift response. Thank you!