1. Google Keyword Toolshttps://adwords.google.com/select/KeywordToolExternalProvided free by Google AdWords. Shows basic search volumes and related terms.
2. Google Suggesthttp://www.google.com/webhp?complete=1&hl=enAs you type, Google will offer suggestions. Good related keyword search.
3. Google Trendshttp://www.google.com/trendsProvides useful insights into broad search patterns across the world.
4. Google Zeitgeisthttp://www.google.com/press/zeitgeist.htmlWeekly Google Search patterns and trends.
5. SEO Book Google Suggest Scrapper Toolhttp://tools.seobook.com/general/keyword-information/Scrapes Keyword Suggestions from Google Suggest.
6. Digital Point http://www.digitalpoint.com/tools/suggestion/Scrapes the Overture Suggestion Tool but includes much more useful information. You can also target by country.
7. MS AdLabs Search Funnelshttp://adlab.microsoft.com/Search-Funnels/Default.aspxYou can use the adCenter search funnel tool to help you visualize how people search by entering related keywords in certain sequences and analyze these search behaviours.
8. Black Hat SEO Keyword Toolhttp://labs.getyacg.com/keyword-tool/Built massive keywords lists in seconds
9. Dogpile Search Spyhttp://www.dogpile.com/info.dogpl/searchspy/Ever wonder what the world is looking for?
10. Wordtrackerhttp://freekeywords.wordtracker.com/Generates up to 100 free, related keywords and an estimate of their daily search volume.
11. GoLexa Search Toolhttp://www.cumbrowski.com/CarstenC/GoLexa_SEO_Tool.aspThe Search Tool with Complete Page Analysis for each Result and much mo
12. Keyword Lizardhttp://www.keywordlizard.com/index.cfm?kwlz&CFID=1439110&CFTOKEN=73746488
13. Keyword Suggestions by Check Rankingshttp://www.checkrankings.com/keywordsuggestion/
14. Lycoshttp://50.lycos.com/Top 50 keyword list from Lycos.
15. Metaspy MetaCrawlerhttp://www.metaspy.com/info.metac.spy/metaspy/See what the worlds searching for filtered or on tap.
16. Nichebot Classichttp://www.nichebotclassic.com/A 3 in 1 keyword suggestion tool: keyword discovery, overture and wordtracker.
17. Niche Watchhttp://www.nichewatch.com/Find exactly which competitors there are in your niche.
18. Ontology Finderhttp://www.gorank.com/seotools/ontology/Related Keywords Lookup Tool by goRank.com
19. SpyFuhttp://www.spyfu.com/Spy on your competitors and download there adwords keywords.
20. Keyworddiscoveryhttp://www.keyworddiscovery.com/search.htmlAnother good, free keyword tool. Also offers advanced features on subscription.
21. URL Trends Reverse keyword Lookup Toolhttp://www.urltrends.com/reversekeywordlookup.phpThis tool was designed to allow you to determine which keywords and phrases your competitors hold in Google.
22. 7 Search Advertiser Tools Keyword Suggestionhttp://conversion.7search.com/scripts/advertisertools/login.aspxEnter a keyword to view most popular searches during past month that contained the keyword
23. build-reciprocal-links.comhttp://www.build-reciprocal-links.com/keyword-suggestion/
24. Yahoo Buzzhttp://buzz.yahoo.com/
25. Cumbrowskihttp://www.cumbrowski.com/CarstenC/GoLexa_SEO_Tool.asp
26. Enteryourkeywordhttp://www.enteryourkeyword.com/index.php
27. Geoland Searchquerieshttp://geoland.org/tools/searchqueries/Shows you total searches and search engine estimates for each word in Google, Yahoo and MSN, uses the overture keyword tool to generate results.
28. Kwbrowsehttp://www.kwbrowse.com/A web 2.0 browser which shows the results in a visual navigation panel. Also gives you a standard keyword list. There are only keywords here, no counts of any sort.
29. Kwmaphttp://www.kwmap.net/This is pretty much identical to the Kwbrowse above.
30. Nichebotclassichttp://www.nichebotclassic.com/The old nichebot that uses wordtracker results, pretty much the same as a lot of other keyword tools out there.
31. Nichewatchhttp://www.nichewatch.com/You need to sign up for this service. Nice tool that gives you a lot of information about each site related to your keyword. Shows Back links to the domain in Yahoo, Back links to the webpage in Yahoo, Pages Rank of domain, Pages Rank of webpage, Keyword/Key phrase occurrences on webpage, Pages indexed of domain in Yahoo ,All in Anchor Rank of domain in Google, All in Title Rank of domain in Google, All in Text Rank of domain in Google.
32. Seoprotoolzhttp://www.seoprotoolz.com/tools/collector/quick.phpSimply enter your seed keyword into the field below and click “Get Related!”. Your results will appear below withing seconds.
33. Submitexpress keytrackerhttp://www.submitexpress.com/keytracker.phpEnter one keyword / keyphrase per line. Maximum 15 per query. Everything over 15 entries will be ignored.
34. Synonymlabhttp://www.synonymlab.com/This tool digs Google synonyms twice for the ~synonym search results.
35. Topic Searchhttp://www.topix.net/This is a news searcher that makes it available to search thru news and blog. Shows an interactive graph of how the keyword has appeared in the news.
36. Webmaster Toolkithttp://www.webmaster-toolkit.com/keyword-research-tool.shtmlA plain and simple tool where you pick the search engine you want to use and it finds related keywords words, nothing else. Not a very accurate tool.
37. Whonuhttp://www.whonu.com/
2. Google Suggesthttp://www.google.com/webhp?complete=1&hl=enAs you type, Google will offer suggestions. Good related keyword search.
3. Google Trendshttp://www.google.com/trendsProvides useful insights into broad search patterns across the world.
4. Google Zeitgeisthttp://www.google.com/press/zeitgeist.htmlWeekly Google Search patterns and trends.
5. SEO Book Google Suggest Scrapper Toolhttp://tools.seobook.com/general/keyword-information/Scrapes Keyword Suggestions from Google Suggest.
6. Digital Point http://www.digitalpoint.com/tools/suggestion/Scrapes the Overture Suggestion Tool but includes much more useful information. You can also target by country.
7. MS AdLabs Search Funnelshttp://adlab.microsoft.com/Search-Funnels/Default.aspxYou can use the adCenter search funnel tool to help you visualize how people search by entering related keywords in certain sequences and analyze these search behaviours.
8. Black Hat SEO Keyword Toolhttp://labs.getyacg.com/keyword-tool/Built massive keywords lists in seconds
9. Dogpile Search Spyhttp://www.dogpile.com/info.dogpl/searchspy/Ever wonder what the world is looking for?
10. Wordtrackerhttp://freekeywords.wordtracker.com/Generates up to 100 free, related keywords and an estimate of their daily search volume.
11. GoLexa Search Toolhttp://www.cumbrowski.com/CarstenC/GoLexa_SEO_Tool.aspThe Search Tool with Complete Page Analysis for each Result and much mo
12. Keyword Lizardhttp://www.keywordlizard.com/index.cfm?kwlz&CFID=1439110&CFTOKEN=73746488
13. Keyword Suggestions by Check Rankingshttp://www.checkrankings.com/keywordsuggestion/
14. Lycoshttp://50.lycos.com/Top 50 keyword list from Lycos.
15. Metaspy MetaCrawlerhttp://www.metaspy.com/info.metac.spy/metaspy/See what the worlds searching for filtered or on tap.
16. Nichebot Classichttp://www.nichebotclassic.com/A 3 in 1 keyword suggestion tool: keyword discovery, overture and wordtracker.
17. Niche Watchhttp://www.nichewatch.com/Find exactly which competitors there are in your niche.
18. Ontology Finderhttp://www.gorank.com/seotools/ontology/Related Keywords Lookup Tool by goRank.com
19. SpyFuhttp://www.spyfu.com/Spy on your competitors and download there adwords keywords.
20. Keyworddiscoveryhttp://www.keyworddiscovery.com/search.htmlAnother good, free keyword tool. Also offers advanced features on subscription.
21. URL Trends Reverse keyword Lookup Toolhttp://www.urltrends.com/reversekeywordlookup.phpThis tool was designed to allow you to determine which keywords and phrases your competitors hold in Google.
22. 7 Search Advertiser Tools Keyword Suggestionhttp://conversion.7search.com/scripts/advertisertools/login.aspxEnter a keyword to view most popular searches during past month that contained the keyword
23. build-reciprocal-links.comhttp://www.build-reciprocal-links.com/keyword-suggestion/
24. Yahoo Buzzhttp://buzz.yahoo.com/
25. Cumbrowskihttp://www.cumbrowski.com/CarstenC/GoLexa_SEO_Tool.asp
26. Enteryourkeywordhttp://www.enteryourkeyword.com/index.php
27. Geoland Searchquerieshttp://geoland.org/tools/searchqueries/Shows you total searches and search engine estimates for each word in Google, Yahoo and MSN, uses the overture keyword tool to generate results.
28. Kwbrowsehttp://www.kwbrowse.com/A web 2.0 browser which shows the results in a visual navigation panel. Also gives you a standard keyword list. There are only keywords here, no counts of any sort.
29. Kwmaphttp://www.kwmap.net/This is pretty much identical to the Kwbrowse above.
30. Nichebotclassichttp://www.nichebotclassic.com/The old nichebot that uses wordtracker results, pretty much the same as a lot of other keyword tools out there.
31. Nichewatchhttp://www.nichewatch.com/You need to sign up for this service. Nice tool that gives you a lot of information about each site related to your keyword. Shows Back links to the domain in Yahoo, Back links to the webpage in Yahoo, Pages Rank of domain, Pages Rank of webpage, Keyword/Key phrase occurrences on webpage, Pages indexed of domain in Yahoo ,All in Anchor Rank of domain in Google, All in Title Rank of domain in Google, All in Text Rank of domain in Google.
32. Seoprotoolzhttp://www.seoprotoolz.com/tools/collector/quick.phpSimply enter your seed keyword into the field below and click “Get Related!”. Your results will appear below withing seconds.
33. Submitexpress keytrackerhttp://www.submitexpress.com/keytracker.phpEnter one keyword / keyphrase per line. Maximum 15 per query. Everything over 15 entries will be ignored.
34. Synonymlabhttp://www.synonymlab.com/This tool digs Google synonyms twice for the ~synonym search results.
35. Topic Searchhttp://www.topix.net/This is a news searcher that makes it available to search thru news and blog. Shows an interactive graph of how the keyword has appeared in the news.
36. Webmaster Toolkithttp://www.webmaster-toolkit.com/keyword-research-tool.shtmlA plain and simple tool where you pick the search engine you want to use and it finds related keywords words, nothing else. Not a very accurate tool.
37. Whonuhttp://www.whonu.com/
