Capturing Emails on a WP Blog

Hey guys,

Had a quick question. I'm hoping some of you may have some knowledge on this. I am getting a new blog set up today in the "Save Money" niche. Not going to get too specific because it's going to cover all aspects and hopefully turn into an Authority blog for the niche.

Do you guys see how on this website, they have the opt-in form on the side: magnifiquebeautytherapy.com

That opt in form is a little larger than mine will be. I will have a simple, two line opt-in form.

What I'm asking is, would it be ok for me to briefly go over the benefits of joining my email list or newsletter, or whatever it is best to be called, at the end of each post? By briefly I mean two or three sentences in an article of 400-600 words.

Would that affect the ranking of the posts?

The blog will be promoting CPA offers. If I hyperlink to an offer at the end of a post, would that affect rankings?

I'm just trying to make sure that I'm approaching this right, because I plan on monetizing this blog with SEO and a little bit of PPC until I get there.

TL;DR

I have a new blog. It will be a content based authority blog used to promote CPA offers. I will drive traffic with the blog via SEO in the long run and PPC until I get there. I will also have a small opt-in form on the website.

Would it affect the ranking of the posts if I briefly went over the benefits of joining my email list at the end of each post, just to draw attention to it and let them know what they'll get? (Briefly = two or three sentences in a 400-600 word post.)

Would it affect the ranking of the posts if I hyperlinked a CPA offer at the end of each post with a call to action? Even if it has nothing to do with the post, but I know the readers would be interested in it?

I'm just trying to make sure I have everything figured out before I jump into SEO. It can get a bit overwhelming if you don't.

Thanks in advance,
JaVaun T