Google panda updates 2 times .
So, its hard to say but - In my such experience the following things are always effective in seo.
- White hat- manual submissions
- Quality links
- Ethical process
- Genuine and relevant content is always matters.
- use only niche categories and niche keywords to rank your website.
Specially- linkwheel, Magnet linkwheel and Advanced linkwheel always works.
I recommended white hat and ethical process.