Google Hacks is a compilation of carefully crafted Google searches that expose novel functionality from Google's search and map services. For example, you can use it to view a timeline of your search results, view a map, search for music, search for books, and perform many other specific kinds of searches.
Open Basic (OB) is an implementation of the BASIC programming language. It is intended to for embedding into user applications as a scripting language. User-defined functions can be written in C/C++, assembler, or other languages and can be activated from BASIC programs, receive parameters of different types, return their results.
The TI-BASIC Compiler allows you to write TI-BASIC programs for the Texas Instruments TI-83 and TI-84+ calculators using your computer instead of the calculator's keyboard. This allows you to spend more time writing code than navigating menus or trying to scroll around the tiny screen on the calculator.