Search Engine Engine
A PageRank and backlinks tool that parses the Google XML report of a URL for values that are different from the toolbar, with source code.
Search Engine Position Tool
Utility based on the Google API to track keyword placement and back link data for an infinite number of keywords/URLs.
Search Engine Results Personalisation
Tool to show the effects of filters are on the algorithmic results returned by the Google API. Personal white and blacklist capability.
Somacon's Data Feed Service
Offers a web-based datafeed submission to Froogle for a Yahoo store.
Stadtaus: Google Dance Tool PHP Script
A PHP script to compare the results of the three Google servers www, www2 and www3 at a glance. The tool can be downloaded and used without charge or registration.
Stagger Nation
Offering various tools based on the Google API. Includes source code.
TouchGraph GoogleBrowser
Java application that uses the Web API to produce graphs of related pages by running "similar-to" queries on Google.
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