Tools for Optimizing your Website:
Links Sleuth: Xenu's Link Sleuth (TM) checks Web sites for broken links. Link verification is done on "normal" links, images, frames, plug-ins, backgrounds, local image maps, style sheets, scripts and java applets. It displays a continuously updated list of URLs which you can sort by different criteria. A report can be produced at any time.
Bad Neighborhood - Text Link Checker Tool: Link Checker will scan the links on your website, and on the pages that your website is linking to, and flag possible problem areas. This can greatly ease your SEO efforts.
KeywordDiscovery - Advanced keyword research tool and search term suggestion tool.
Tips'nTutorials.com: Here are the top ranking directories that allow free web site submission. By directory, it means the listings are categorised and edited by people, not automated scripts. They're ordered by Google PageRank.
Google Webmaster Tools: Google's webmaster tools provide you with a free and easy way to make your site more Google-friendly.
Yahoo! Site Explorer: Site Explorer allows you to explore all the web pages indexed by Yahoo! Search. View the most popular pages from any site, dive into a comprehensive site map, and find pages that link to that site or any page.
XML-Sitemaps: Free Online Google Sitemap Generator. Build your sitemap online (XML, ROR, Text, HTML).
Domain-Age Tool: The Domain-Age Tool displays the approximate age of a website on the Internet and allows you to view how the website looked when it first started. It also helps you find out the age of your competitor's domains.
Keyword Density Analyzer: The Keyword Density Analyzer tool is useful for helping webmasters achieve optimum keyword distribution.
WordTracker: Enter a starting keyword in WordTracker to generate up to 100 related keywords and an estimate of their daily search volume.
Solo SEO's Link Search Tool: Designed to be an SEO resource for small businesses, this Link Search Tool is easy to use. Enter a keyword and out comes 25-50 potential link resources via directories, blogs, etc.
Site Yogi SEO Tool: This is your one stop site analysis seo tool which checks backlinks, indexed pages on the major search engines, social bookmarks, rankings and much more.
Link Diagnosis SEO Tool: Analyze your competitor's link building strategy by viewing anchor text, PR and more with this link tool - a personal favorite.
Keyword Density Analyzer: Use the keyword density analyzer to analyze your competitor's or your own website's keyword density. Just enter the URL.
SEOMoz Page Strength: Quickly assess a given website's/page authority, visibility and importance with the Page Strength Tool.
Supplemental Index Raio Calculator: The Supplemental Index Ratio tells you what percentage of your website's indexed pages are in the supplemental results.
SEO Book's Back Link Analyzer: The Back Link Analyzer is currently only a Windows application, but it is a free link popularity / link analysis tool that shows what anchor text is linking into a page or site. Check out the video.
SEO Link Analysis Firefox Extension: This Firefox extension gives you a bit more information when using Yahoo Site Explorer and Google's Webmaster tools. It gathers the PageRank for the linking page, the anchor text used on the link, and checks whether the link is nofollowed or not.
Dynamic URL Rewriting Tool: This tool helps convert dynamic URLs into static looking html URLs with the help of an htaccess file.
Exactfactor Search Engine Positioning Tool: Unique search engine ranking checker that provides detailed website promotion reports. Find your website position in Google, Yahoo or any other search engine. Track your website promotion and track your competing websites with this SEO Tool - simple and easy to use.