Yahoo Store Feed to Google Product Search - Offers a web-based datafeed submission to Google Product Search for a Yahoo store. - http://www.atensoftware.com/p50.php
AdSense Preview Tool - Tool to preview sample AdSense ads with inputed URL. - http://www.websitegear.com/tool/google_adsense.asp
Compare Google's Web Search to Google Accessible Search - Tool for comparing the standard search results of Google and its special search for accessible sites in the same page. Provided by Google Blogoscoped. - http://blog.outer-court.com/accessible/
SiteAll - Provides a Froogle data feed generator tool and a PageRank analysis tool for download. Includes articles and news. - http://www.siteall.com/
SEO Tools: PageRank Search - Shows the Google results with their PageRank. - http://www.seochat.com/seo-tools/pagerank-search/
YIMGoogle - Java-based bot on Yahoo IM that searches Google for a given search term and returns the first five results. - http://www.tropo.com/techno/java/yimgoogle/
Live PageRank - Displays the current PageRank value in the Google index for different data centers. - http://livepr.raketforskning.com/
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. - http://www.searchengineengine.com
Speegle - A Scottish computer speech technology company provides a talking version of Google's search results. A selection of spoken newsfeeds is also available. - http://www.speegle.co.uk/
Adsense Monitor - Scripts to track Google Adsense ads in PHP, ASP and Javascript. - http://www.adsense-monitor.com
2KRT: Keyword Ranking Tool - A free Microsoft Excel VBA application that can be used to check Google for keyword ranking and to track search engine rankings for various keywords over time. Uses Google API and API Web Service. - http://www.2kmediat.com/kkmediat/eng/products_2krt.asp
Pagerankstatus - Browser extension that displays the Google Pagerank in the browser's status bar (Firefox and Mozilla only). - http://www.tapouillo.com/firefox_extension/
Google Preview - A Firefox browser extension that inserts preview images (thumbnails) of web sites, Amazon products and stock charts into the Google search results page. - http://ackroyd.de/googlepreview/
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. - http://www.myserp.com/
Google Datacenter Tool - Offering a free tool to monitor specific Google data centers. - http://www.mcdar.net/dance/index.php
Random Google Search Thing - Generates random search queries for a user-defined number of search terms. The PHP source code is available. - http://pgl.yoyo.org/random/
Stagger Nation - Offering various tools based on the Google API. Includes source code. - http://www.staggernation.com/
Geographic Search - This software, that won the 2002 Google Programming Contest, allows Google users to find web pages that are located within a specific geographic locale. Source code is distributed under the GNU GPL. - http://dan.egnor.name/google.html
Floogle - Uses the Web API to allow users to search through Google's entire database with results displayed in a Flash interface. - http://www.flash-db.com/Google/
SEO Count - A Web based ranking reporting tool. - http://www.seocount.com/
Google Dance Tool - Checks Google servers to determine if there is an update in progress. - http://www.seochat.com/googledance
DevilFinder - Search tool which shows Google results arranged 100 per page. Also has an image search which displays images full size, and a choice of news headlines from a variety of sources. - http://www.devilfinder.com/
Googolplex - A Python library to retrieve Google results without Google API. - http://googolplex.sourceforge.net/
GooFresh - Interface for restricting searches to sites added recently to the Google index. - http://www.researchbuzz.org/archives/001405.shtml
Google - Yahoo Comparison - Tool for comparing the search results of Google and Yahoo in the same page. - http://www.googleguy.de/google-yahoo/
GoogleJack - Play a variation of BlackJack, with a target of 101 instead of 21. Google API key required. - http://www.researchbuzz.org/archives/001418.shtml
Google Rankings - Online tool for checking any domain position for a given keywords in the Google's search results for free. - http://www.googlerankings.com/
Geoff's GoogleDuel - Takes two search terms and shows which one is the most popular according to Google. Implementation using PHP with source code available. - http://www.googleduel.com/
Google Hacks - Collection of tools including Google News headlines projected onto a world map. - http://douweosinga.com/projects/googlehacks
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. - http://www.digitalpoint.com/tools/keywords/
Google Alert - Monitors professional interests online. Tracks the web for topics and sends new Google results by daily email. Not affiliated with Google. - http://www.googlealert.com/
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. - http://www.stadtaus.com/en/php_scripts/google_dance_tool/
Google Tool - Search www/www2/www3 or the five google datacenters simultaneously. Can be used to check if the dance has begun. - http://www.void.be/googletool.html
Random Web Search - Generates random words, then allows searching for them on Google. - http://www.randomwebsearch.com/
Mangle Random Link Generator - Displays a random web site from Google's archive. Powered by the Web API. - http://www.mangle.ca/
Page Rank Calculator - Webmaster tool for calculating the PR of a web site. Includes description of how PageRank works and related links. - http://www.markhorrell.com/tools/pagerank.html
TouchGraph GoogleBrowser - Java application that uses the Web API to produce graphs of related pages by running "similar-to" queries on Google. - http://www.touchgraph.com/TGGoogleBrowser.html
OnFocus.com: Google Smackdown - Takes two words or phrases as input, queries Google via its API, and receives the estimated total results for each word or phrase to show which one is most popular. - http://www.onfocus.com/googlesmack/down.asp
Google Relatedness - Calculates how related two given words are by using the API. Requires the Mozilla browser. - http://www.squarefree.com/google/relatedness.html
DentedReality: XooMLe - Allows access to the API via a REST-like interface, with results returned in XML. - http://www.dentedreality.com.au/xoomle/
Googlebar - Created to be used with Netscape 6/Mozilla, this unofficial software emulates many features of the Google Toolbar. Screenshots, downloads, and wishlist. - http://googlebar.mozdev.org/
Random Google Page - Uses a given amount of terms to select a 'random' page from the index. - http://bleb.org/random/
Google SearchTool - Floating toolbar for Windows allowing you to conduct searches with Google. Includes an FAQ, screenshots and system requirements. - http://www.frysianfools.com/ggsearch/
Google Dance Machine - Facilitates searching of all Google servers simultaneously. Includes additional options for German speakers. Requires frames. - http://google-dance.miniunternehmen.de/