The simply the best collection of SEO scripts
Shows a text or image when you move your mouse over an element.
A powerful open source PHP library to request a bunch of SEO relevant metrics such as detailed backlink analyses, keyword and traffic statistics, website trends, page authority, Google Pagerank, the Alexa Trafficrank and much more.
A plugin that attempts to determine the user's intent. It waits until the user's mouse slows down enough before making the call so it delays or prevents accidental firing of animations or Ajax calls.
A PHP class to download website data from Google Webmaster Tools as CSV files.