For about half of a year I have been trying to knock a nasty review about me down on google. I know nothing about all this stuff and have been using fiverr. When I tried positive SEO for other sites, it would work marginally well (the bad site would only go down a few), but the gains were temporary. I've tried negative SEO and it looks like the same thing is happening. What is the best place for me to learn about the basics of effective reputation management?