There are lots of (free) tools out on the Internet that can help you with every aspect related to website optimisation, search engine submission, and website ranking. Some are great tools and in the summary below I'll provide some links to some of the best ones.

HTML VALIDATOR PROGRAMS W3C - Markup Validation Services   META TAGS GENERATOR TOOLS Live2support - Metatag Tool ScrubTheWeb AddMe   SITEMAP GENERATOR SitemapPal   META TAGS ANALYZER ScrubTheWeb   SEARCH ENGINE SPIDER SIMULATORS Webconfs.com - Search Engine Simulation Tool Delorie - Search Engine Simulator Search Engine World - Search Engine Simulator   KEYWORD RESEARCH TOOLS Webmaster Toolkit WordTracker Overture Keyword Tool   KEYWORD DENSITY CHECKER Webconfs.com - Keyword Density Checker Keyworddensity.com Search Engine World - Keyword Density Analyser   ROBOTS.TXT VALIDATOR Search Engine World - robots.txt validator   BROKEN LINK CHECKER Xenu's Link Sleuth W3C Link Checker 1-hit.com - Broken Link Checker   LINK POPULARITY CHECKER Webmaster Toolkit Webconfs.com - Backlink Builder Antssoft (not free)   PAGE RANKING TOOLS 1-hit.com - Google and Yahoo page ranking tool Webmaster Toolkit - Search Engine Position Checker   STATS AND TRACKER PROGRAMS eXTReMe Tracking The Counter - Web Site Analysis Tool (not free) Alexa Traffic Ranking   OTHER COOL TOOLS Alexa Toolbar Google Toolbar