Who do I contact about asking if they would work with me on a review or a giveaway?

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Hello, I am from Mommies Point of View a Mommy Blog which can be viewed at http://www.MommiesPointofView.blogspo... and I was wondering if your company would allow me to host either a review or giveaway with your company as I found you on Goggle and as a mom of a 3 year old I fell in Love with the site. I am also setting up a 3 month reading challenge on my site and I am in need of sponsors for it you can see all the details on the front page of my blog and reach me by email at MommiesPointofReview@gmail.com with any questions you might have.
Thanks, Glenda Cates