I would use the second option so that you get the traffic to your site and benefit from it in your rankings.

I personally preffer option 2 so it also benefits my blog and not only the sale statement.
Maybe the client likes your entire blog so it would be a pitty if he never visits it because of a direct link.
Regards,
Tina

I never used Pinterest but if youre using their ad manager to place an ad, my suggestion read their terms of services and advertising rules prior to placing an ad. If it was me I would use a landing page to capture an email list and follow up with them through an autoresponder. In your email autoresponder will have your sites on them. People can go there to check it out. I feel capturing leads are crucial, they can opt in check it out, if they opt out fine, then keep marketing with a landing page. I prefer to use a landing page that capture leads. Affiliate links do not capture leads. You want to build a list and email will continue to follow them it takes seven or more times before people will decide to buy a product that you are marketing. Hope that makes sense. Good luck with your decision.

If your pin is a pointer to your blog then you should out the blogs URL on it. If it's pointing to your site, then place your website on it. Jim