Is This a Real Advertiser or Something That Might Hurt My Blog?

I have another question for you regarding ads on blogs. I've been asked by an insurance company to place a monthly ad on my blog. I researched the product and I am okay with that. They want to put their hyperlink somewhere near my title, not on a side bar. I'm okay with that, too. My question is, what is a good monthly rate to ask for? …