Linux Journal has posted an article describing the installation and use of Oregano. Oregano is an electrical design and engineering tool for Linux which allows for schematic design and simulation of electronic circuits. The actual simulation is performed by Berkeley Spice, or GNUcap or the new generation ngspice.
Oregano is licensed under the terms of the GNU GPL, and is a work in progress. The dev crew welcomes any assistance in improving the program or adding new features.