|Keyword Research Tools SEO Search engine optimization
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Keyword Research Tools
Tools which help you discover potential keywords based on past search volumes, search trends, bid prices, and page content from related websites.
Short list of the most popular keyword research tools:
SEO Book Keyword Research Tool - free, driven by Overture, this tool cross references all of my favorite keyword research tools. In addition to linking to traditional keyword research tools, it also links to tools such as Google Suggest, Buzz related tools, vertical databases, social bookmarking and tagging sites, and latent semantic indexing related tools.
Overture - free, powered from Yahoo! search data. Heavily biased toward over representing commercial queries, combines singular and plural versions of a keyword into a single data point.
Google - free, powered from Google search data.
Wordtracker - paid, powered from Dogpile and MetaCrawler. Due to small sample size their keyword database may be easy to spam.
Please note that most keyword research tools used alone are going to be highly inaccurate at giving exact quantitative search volumes. The tools are better for qualitative measurements. To test the exact volume for a keyword it may make sense to set up a test Google AdWords campaign.