Google Code
Google Code,a home for open source projects from Google. Google writes that they've released:
CoreDumper: The CoreDumper library can be compiled in to applications to create core dumps of the running program, without termination. It supports both single-and multi-threaded core dumps, even if the kernel doesn't natively support multi-threaded core files.
Sparse Hashtable: This project contains several hash-map implementations in use at Google, including implementations that optimize for space or speed.
Goopy/Functional: Goopy Functional is Python library that brings functional programming aspects to Python.
Perftools: These tools can be used to create robust applications such as XX, and XX. Especially of use to those developing multi-threaded applications in C++ with templates. Includes TCMalloc, heap-checker, heap-profiler and cpu-profiler.