Had a client ask recently about Negative remarks on Social Media

This pretty much covers it!

The Wrath of Panda: Googles New Algorithm Update | SiteProNews

 And the bullet points are:

• Never copy, steal, or scrape content from another site and claim it as your own.
• Resist the urge to predominantly keyword-stuff your site’s content.
  Keyword stuffing is no longer a boon for a site’s rankings, thanks to
  Panda’s prowl, so cease and desist this archaic and damaging practice.
• Ensure all your content is readable to humans, not search engine bots.
• Create the highest quality, original content possible.
• Every time you publish a new piece of content, ask yourself the
  following: “Would I publish this in a major news outlet and feel proud
  to put my name as the author?” If your answer is ever a no, don’t
  publish it to your site.
• Publish content on a regular basis; sites with nothing but outdated and irrelevant posts are potential penalty targets.
• Make sure all backlinks are high-quality; never accept links from
  questionable sources. If you have offending sites as link partners, your
  site is also implicated.
• Double check that your site is technically sound, built with SEO in
  mind. Sites with security risks and obvious viruses are also affected.

The Wrath of Panda: Googles New Algorithm Update | SiteProNews