From Derbyfever.com Wiki
For much of the Sim's history players have created and used programs and other media to expand the game's boundaries, to make in-game processes simpler, and to access Sim information in ways not offered within the game itself. Some ideas and features of these utilities have been incorporated into the game while others remain distinctly separate offerings.
Several tools and utilities are/were available exclusively online and required only a web browser and an Internet connection to function.
Now defunct, Yochem's Online Sim Searcher (aka YOSS) offered breeding and racing statistics, as well as a personalizable option to access stable and stable-grouping information before the All My Stables feature was available in the game.
The Benelux residency hosts several tools available to the Sim at large. Yochem, previously responsible for YOSS, manages these tools. These tools include Sire Statistics, Breeding information, Nicks Analyzers, Bidraces tracker, Tipsheets for all tracks, RacingForm, Speedstats, Graded winners tracker and more. All tools are based on the current horsepool.
Sim Trainer and Race Stats
Terrapin Jockey Club Tools
Some tools and utilities are/were available for download and operated offline (though some require(d) an Internet connection to update or connect to the Sim).
Super Sim Searcher
The Super Sim Searcher (SSS) is perhaps the granddaddy of all sim tools by virtue of its impact on later utilities. Though it is no longer in development, many of its features were later incorporated into both Stable Tool and Stable Manager.
Stable Manager, developed and supported by longtime player Jimj, incorporates many of the statistical attributes of the Super Sim Searcher with options to manage most of the daily and weekly Sim tasks more efficiently via the Stable Manager application.