Originally Posted by charlesgan
4) Place this site URL to my other site footer.
I think among all the steps of your SEO activity, this one has probably played the major part.
Being indexed in search engines does not contribute much to the PR ranking, I find. What does count is having your Press Releases published. One of my sites was mentioned in the release of another company once and it set the PR ranking to 4. The site was a couple of weeks old that wasn't even submitted to search engines.