31. Tools.seobook.com General Spider-test Page
Tool grabs the source code of a page and trys to show it similarly to how a search spider may see it.
http://tools.seobook.com/general/spider-test

32. Linkhounds.com Link-harvester Backlinks Page
Link Harvester is a free open source link analysis tool from www.seobook.com .
http://www.linkhounds.com/link-harvester/backlink~

33. Code.mincus.com 3 Adsense-notifier Page
Displays your Adsense earnings on the Firefox statusbar.
http://code.mincus.com/3/adsense-notifier

34. Tools.seobook.com General Keyword-density Page
Free tool to help you find the most common words and phrases on a page.
http://tools.seobook.com/general/keyword-density

35. Tools.seobook.com Buttons Page
Free Google buttons to help you modify the Google Toolbar to help you have easy access to SEO tools and SEO news to do search engine optimization.
http://tools.seobook.com/buttons

36. Tools.seobook.com General Keyword-information Page
Tool to help you find relevant frequently searched for phrases on Google.com.
http://tools.seobook.com/general/keyword-informat~

37. Seodigger.com
Free seo tool, by means of it you can find out for which keywords your site ranks high enough to be in Google Top 20
http://seodigger.com

38. Visibilitypro.com
By joining VisibilityPro, you will not only improve your rankings with search engines, but can also learn the inner workings of the ranking system. You will be able to review all submitted URLs, and get a detailed analysis of your website. All from one place!
http://www.visibilitypro.com

39. Seochat.com Seo-tools Link-popularity Page
Quickly gauge your websites visibility, based on link-popularity-data collected from all the major search engines with the SEOChat link popularity tool.
http://www.seochat.com/seo-tools/link-popularity

40. Webmaster-toolkit.com Link-popularity-checker Page
Link Popularity Checker - tells you how many websites are linking to yours.
http://www.webmaster-toolkit.com/link-popularity-~

41. Webmaster-toolkit.com Class-c-checker Page
This free Class C Checker tool allows you to check if some sites are hosted on the same Class C IP Range.
http://www.webmaster-toolkit.com/class-c-checker.~

42. Seochat.com Seo-tools Spider-simulator Page
A lot of content and links displayed on a web page may not actually be visible to the search engines, e.g. Flash based content, content generated through JavaScript, content displayed as images, and so on.
http://www.seochat.com/seo-tools/spider-simulator

43. Creatingonline.com Site_promotion Future_page_rank Page
With this free online future page rank tool get a glimpse of your website's future page rank, seo tips, free online site promotion tools.
http://www.creatingonline.com/site_promotion/futu~

44. Seochat.com Seo-tools Search-engine-keyword-position Page
Use the Search Engine Keyword Position Tool to check the search engine result pages of Google, Yahoo, and MSN to see what position your site holds for a particular keyword phrase.
http://www.seochat.com/seo-tools/search-engine-ke~

45. Webconfs.com Keyword-density-checker Page
SEO Tools : Keyword Density Checker - Keyword Cloud
http://www.webconfs.com/keyword-density-checker.p~