How can I prevent negative marketing or link building against my website?

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  john matthew: hi guys,
  
  can anybody tells me how i can prevent negative marketing or link building against my website is there any tool available?
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  Brent Wildman: Don't piss people off?
  You check your back link profile with tools like opensiteexplorer, ahrefs and majestic. The best thing to do is to continuously build high quality links so you're site isn't dragged down by a few low quality links.
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  Matthew Banes: You'll need someone to REALLY hate you if they're going to build enough bad links to get you Google slapped, mostly they'll have no effect if you've got decent links coming in.
  Pop into webmaster tools occasionally, if you have 20,000 links from a Russian spam directory you've probably annoyed someone.
  https://support.google.com/webmasters/answer/2648487?hl=en this is your friend for getting read of them.
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  john matthew: +Brent Wildman  ;Thanks Brent that was helpful i already know these tools which you have mention but i wanted to get any other way of detecting these daily new and lost links and most of tools you told here, are paid i was looking for free tool available if any? anyways Thanks again!
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  john matthew: +Matthew Banes  ;Thanks Matthew i much appreciated your comments and help! look forward for more discussions  ;
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  Internet Marketing and Web Content Strategy Tips: In terms of link building, I also think you have nothing to worry about. It requires so much effort that I doubt someone would do it just to make your website lose its ranking. You can still check your backlinks occassionally to figure out what is going on.
  
  When it comes to negative marketing, people say that any kind of promotion is good. Make use of such opportunities. Address negative comments and turn them around. We have often seen negative reviews and comments as opportunities and they provide excellent promotional options.
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  eric bailey: That's a lot of work for no reason. If I had a site and I'm trying to out rank you, I'd rather put that time to better use.
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  john matthew: +eric bailey  ;totally agree!