Book Author Needs Virtual Assistant for Calls, Research, Social Media & Blog Updates

I am an author of a book that expects to be a best seller. I am in need of someone with good English skills who is capable of researching topics, researching businesses in the US and contacting various places to setup author interviews and signing events as well as other marketing efforts. You must also post to many social media sites. If you are familiar (or willing to learn) with posting blog articles on Joomla, you will move to the front of the line. Place your bid based on 10-20 hours of work per week.