RuckusRD is a drop-in replacement for mkinitrd that's intended for use on embedded systems or removable media (e.g. live CDs), but is also perfectly usable on normal desktop Linux systems. Its main strength is its non-memory-retentive read-write root filesystem support, which combines a read-only SquashFS image with a RAM overlay. This utility is part of the Source Ruckus project.
Quizzley is a simple site that allows you to create a quiz or a poll and distribute it to your audience. Once your audience pairs with the quiz/poll, their smartphone will automatically transform into the voting pad. It's a fast way to interact with your audience; no authentication or registration are needed.
C Almost Generic Library (CAGL) is a set of C macros which generates typed arrays, lists (singly or doubly-linked), hash tables, and balanced binary trees, as well as many useful functions to manipulate them. The containers grow automatically, and their memory is managed by the library. The container data, or elements, may also be managed by the library, depending on the options specified by the programmer. The aim is to free C programmers from the drudgery of implementing common data structures and algorithms. CAGL also provides some safety by making the containers typed instead of void pointers. Although, at most, two macros are invoked to declare and define a container type, manipulation of the containers is done using functions generated by the macros. A simple naming convention is used to get around the limitation that C doesn't support function overloading.
NimBorg is a library for accessing Lua and Python libraries from within Nimrod code. It wraps the C API of these languages with macros which make the code far more readable than the low-level API, and also automatically handles the memory management interface of these languages so that objects aren't deallocated as long as they're accessible from your Nimrod code.
mrtparse is a module to read and analyze the MRT data format. The MRT format can be used to export routing protocol messages, state changes, and routing information base contents, and is standardized in RFC6396. Programs like Quagga/Zebra, BIRD, OpenBGPD, and PyRT can dump to MRT.