an event-driven networking framework supports TCP, UDP, SSL/TLS, multicast, Unix sockets, a large number of protocols (including HTTP, NNTP, IMAP, SSH, IRC, FTP, and others)
an STL-like container for C++ that fills the gap between vector (or deque) and list, providing both fast random access and fast insertion/removal, all O(log n). This is not a map...
a font rendering library for OpenGL applications. It supports bitmap, textured, polygon, and outline glyph rendering and relies on FreeType for font loading.