Packet.Net is a .Net assembly that provides a way to dissect and construct network packets. Packet parameters are accessible via class properties.
SharpPcap is a packet capture framework for the .NET environment, based on the famous pcap/WinPcap libraries. It provides an API for capturing, injecting, analyzing, and building packets using any .NET language such as C# and VB.NET.
xmms-jack is an XMMS audio output plugin for the jack audio server.
A lightweight blog system.
An online interactive tutorial and free text assesments.