Long-term SEO strategy, please help.

You could also try press releases, and guest posting on some popular blogs to varify your link building strategy

 

What I am doing

In my opinion if you're in the same niche...Build your own network of blogs on different dedicated IPs and put your efforts to build their page ranks and authority by adding unique content and linking them from articles and bookmarks. In this way you can control your backlinks and this will be long term formula. I know it is little expensive but much better than when you have to get links from other sites (article directories, bookmarking,blogs) on regular basis because they will remove your links after some time period and you have to look for new links after 6 months or 1 year to establish ranking.