I am doing SEO for a shopping cart that means pen related website for last 4 months but, last 4 weeks I am seeing that some of my targeted keywords were went from page 1 to page 2 in Google results. Please suggest me whether my promotions was wrong. Below I mentioned the promotion activities that I did for my website. Directory Submission Social Bookmarking RSS Feed Submission Listing Submission Promoted in shopping related websites Q1 - Whether my promotions was wrong?? Q2 - How to get back my website in page one in google??
These link building tactics are OK. How quickly have you build your backlinks? Maybe you added too much backlinks in the short period of the time? If this happen continue with the link building but slowly and you will get back (probably higher).
Usually the directory submission will be the cause. When you get these services that submit your site to "X,XXX PR4+" directories then that is not usually a good thing to use. I would never use a directory submission service/software. that's a giant red flag for google