pr site

I recently purchased an expired domain to use to boost my sites rankings. It has 4.6K backlinks, 20+ moz authority, and backlinks that don't look spammy. However I made a post and added 3 links to my site and now the rankings have dropped into oblivion. Is this normal after you link from a...

Does anyone can suggest and recommend some new stuff to do, activities and ways to earn for my pr4 site? I was thinking looking for people here who would be interested to link on my site but, how?