I have a blog. Its about 1 month old. PR 1 with 250 backlinks. I get about 200 visits a day from google.

I have the wordpress blog in the main folder of the domain (domain.com/index)

I also have a forum at domain.com/forums

I think some of my backlinks leads to my blog posts directly (domain.com/category/blog-post.html)

If I wanted to move my blog to a folder (domain.com/blog), and possibly put a sales copy of my ebook, or a more sales friendly landing page on the main page of the domain, would that affect my google SERP?

Im first for some of my keywords so that would suck.