You have done with all off-page processes. There is nothing left behind, but I can tell you some ideas to do them differently. I want to know about your purpose of searching for new processes.
There might be two possibilities- either you are not getting traffic, or you are not getting results on the top. My suggestion is:
- For traffic: Go for SMO, this will bring organic traffic to your site.
- For results: Add two off-page processes in a package. For example, search high PR, quality Article sites, submit some unique and fresh articles on the sites and then, promote them with the help of Social bookmarking.
I am sure, such combination will definitely rank your website's position in the Search results.