Keyword Research and Rankings Tools
Keyword Suggestion Tools
 1.Google Adwords: Keyword ToolGoogle’s official Adwords keyword research tool |
 2.SEO Book Keyword ToolSEObook.com’s keyword suggestion tool |
 3.Wordtracker Keyword Suggestion ToolFree keyword suggestion tool from Wordtracker from 1997 |
 4.Yandex Keyword Research ToolYandex.ru (Russia)’s offical keyword database tool |
 5.SEOMoz Keyword DifficultySEOmoz’s Keyword Difficulty tool estimates the difficulty of a given keywords |
 6.Soolve Keyword Compare ToolKeyword research tool that compares queries between major Search Engines and others. |
Keyword Trend & Insight Tools
 1.Google TrendsGoogle’s official keyword trends tool |
 2.Baidu TrendsBaidu’s official keyword trends tool |
 3.Google Insights for SearchGoogle’s official insights for search tool |
Keyword Related Software
 1.Market SamuraiKeyword analysis and discovery software |
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