JUICE is a UDP Interactive Connectivity Establishment library
Lite reliable UDP library for Mono and .NET
Network library for developing TCP/UDP/SSL/HTTP/WebSocket/MQTT client
Cross-platform asynchronous I/O
Asynchronous streaming communication for Clojure
A collection of Python classes for working with network protocols
High Performance data structures and utility methods for Java
Coroutine-based concurrency library for PHP
Publish/Subscribe, Request/Reply Messaging API for Java.
Real Time Tcp/Ip Stack Library
Fast and low latency asynchronous socket server & client C++ library
ESP8266 core for Arduino
BASIC for the modern era
Ribbon is an inter process communication library
A list of popular BitTorrent Trackers
The Standart SFENCE Extension Module (SSEM).
Useful crossplatform library for distributed systems
Coroutine-based concurrency library for Python
Ethernet stack implementation (currently based on the ENC28J60)