How Will Changing My Site from Free To Membership Affect Google Search Results?

[lastreporter]

I have a relatively new site, which I have filled with original, researched content. All of these article were initially free and quickly indexed by all the search engines. I'm getting about 22 searches per day and growing.

However, yesterday I converted my site to a free and premium model. It is now about 80 percent premium/ 20 percent free.

I intend to add a free article once a day, but the best content I create will be premium. I also sell my e-book reports from the site -- no other ads.

Finally, my question:

How will this affect my search engine hits, or will it?

Appreciate any insight of advise on this matter.

Thanks.