Drupal SEO module

There are a number of Drupal SEO modules to choose from. Here is a summary of the most popular ones to help with your Drupal search engine optimization.

Module	Project Page	Version	Importance	Tutorials
Path	http://drupal.org/ handbook/modules/path	4/5/6	must have	Path Tutorial
Path Auto	http://drupal.org/ project/pathauto	5/6	must have	Pathauto Tutorial Pathauto Settings Tutorial
Page Title	http://drupal.org/ project/page_title	5/6	must have
Global Redirect	http://drupal.org/ project/globalredirect	4/5/6	must have	Global Redirect Tutorial
Path Redirect	http://drupal.org/ project/path_redirect	5/6/7	must have
Meta Tags (nodewords)	http://drupal.org/ project/nodewords	5/6	must have	Meta Tags (nodewords) Tutorial
Meta Tags by Path (nodewords bypath)	http://drupal.org/ project/nodewords_bypath	5/6	good to have
Meta Tags Node Type (nodewords nodetype)	http://drupal.org/ project/nodewords_nodetype	5/6	optional
XML Sitemap	http://drupal.org/ project/xmlsitemap	5/6	good to have
Menu Attributes	http://drupal.org/ project/menu_attributes	6	good to have	Menu Attributes Nofollow Tutorial
Automatic Node titles	http://drupal.org/ project/auto_nodetitle	4/5/6	good to have
Search 404	http://drupal.org/ project/search404	4/5/6	good to have
Links Checker	http://drupal.org/ project/linkchecker	5/6	good to have	Broken Links Tutorial
SEO Checklist	http://drupal.org/ project/seo_checklist	5/6	good to have
SEO Friend	http://drupal.org/ project/seo_friend	6	good to have	SEO Friend Screenshots
HTML Purifier	http://drupal.org/ project/htmlpurifier	5/6	good to have
Google Analytics	http://drupal.org/ project/google_analytics	5/6
Service Links	http://drupal.org/ project/service_links	5/6	optional	Service Links Tutorial
Digg This	http://drupal.org/ project/diggthis	5/6	optional
good to have
Nofollow List	http://drupal.org/ project/nofollowlist	5/6
SEO Checker	http://drupal.org/ project/seo_checker	6
Excerpt	http://drupal.org/ project/excerpt	5/6
Alinks	http://drupal.org/ project/alinks	5/6
More Like This	http://drupal.org/ project/morelikethis	6
Related Content	http://drupal.org/ project/relatedcontent	5/6
Glossify Internal Links Auto SEO	http://drupal.org/ project/glossify	5/6
Calais	http://drupal.org/ project/opencalais	6
Safe HTML	http://drupal.org/ project/safehtml	4/5
Urlify	http://drupal.org/ project/urlify	4/5
Find URL Alias	http://drupal.org/ project/find_path	4/5
Related Links	http://drupal.org/ project/relatedlinks	4/5
URL List	http://drupal.org/ project/urllist	6
RobotsTxt	http://drupal.org/ project/robotstxt	5/6
Page Title by Path	http://drupal.org/ project/page_title_bypath	5
Custom Breadcrumbs	http://drupal.org/ project/custom_breadcrumbs	5/6
Pathologic	http://drupal.org/ project/pathologic	6