MooTools is a javascript framework that simplify javascript developing giving a lot of high level APIs that allow to build animation and dynamic behaviours in web site to add usability.
Google Webmasters Tools is a helpful tool for webmsters and SEO engineer because it allows to knows web sites errors and to know how a site is seen by Google. To use Google Webmasters Tools you must have a Google account.
Google Analytis is a helpful tool for webmaster and SEO expert to verify quantity and quality of site visits and the result of SEO activity. To use Google analytics you must have a Google account.
