I have a blogger website that I promote with Google+ only. Since January (2015) I have had over 4000 views without ever spending a penny on it.
If you like, I could set up a Google+, Facebook, Twitter and LinkedIn profile and actively promote your blog posts. In my experience, I only need to post once per week on Google+, Facebook, and LinkedIn, and two times per week on Twitter.
For all of this, I would only charge $15 per week.
However...would you mind setting it up as a fixed budget project and not an hourly one. Maybe set up a private project using the "Hire Me" button on my profile. We could work it for just a month (4 x $15 = $60), and if you are happy with the results then we can continue on from there.
I should also mention that the blogger blog I maintain is top of Google's search engine for the keyword "Reasons to Giggle." I set it up to help sell my e-book on Amazon, and as a result, my E-book is also on the first page of Google because of it.
Drop me a message and I can send you links and photographic proof of my claims.
Regards
Ashley