Google webmaster tools has provided a new keyword significance tool
Google webmaster tools continues to evolve with a visual element added to its keyword data it provides to webmasters who have verified that they are the current owner of the site. There new webmaster feature mix some search optimisation benefits and an easier way to flag spam and hacked content.
Google Keyword Significance Tool
You can drill into these keywords and quickly identify which URLs contain them and eliminate any hacked content. We ensure all our clients are running Google webmaster tools to ensure they avoid any issues like Malware, Hidden content or Spam or check out this Webmaster’s Guide.