Hi there,
I'd like to know a little more about your project, as I'm not yet sure whether this is down my alley. I do write blog posts, but do you want the chosen freelancer to actively promote your product on their personal blog? Or do you only want blog posts written, which you'll use on a blog/website of your own?
As to content, I write generally informative posts which are easy to read (and understand) and provide basic information and/or tips. I write specialised information about certain subjects, but this is not one of them. If that's what you're looking for, please contact me answering the question above.
I look forward to hearing from you!
Thanks,
Priya