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+README for NGSPICE
+==================
+
+Ngspice is a mixed-level/mixed-signal circuit simulator. Its code
+is based on three open source software packages: Spice3f5, Cider1b1
+and Xspice.
+
+Spice3 does not need any introduction, is the most popular circuit
+simulator. In over 30 years of its life Spice3 has become a de-facto
+standard for simulating circuits.
+
+Cider couples Spice3f5 circuit level simulator to DSIM device simulator
+to provide greater simulation accuracy of critical devices. DSIM
+devices are described in terms of their structures and materials.
+
+Xspice is an extension to Spice3C1 that provides code modelling support
+and simulation of digital components through an embedded event driven
+algorithm.
+
+Ngspice is, anyway, much more than the simple sum of the packages
+above, as many people contributed to the project with their experience,
+their bug fixes and their improvements. If you are interested, browse
+the site and discover what ngspice offers and what needs. If you think
+you can help, join the development team.
+
+Ngspice is an ongoing project, growing everyday from users contributions,
+suggestions and reports. What we will be able to do depends mostly on
+user interests, contributions and feedback.
+
+
+
+USER DISCUSSION FORUMS:
+-----------------------
+
+ For discussions on ngspice, there are five discussion forums, to be
+ found at https://sourceforge.net/p/ngspice/discussion/. These
+ typically provide quick answers to any question concerning ngspice.
+ A new section on 'tips and examples' assembles useful tips provided
+ by maintainers and users.
+
+
+
+MAILING LISTS:
+-------------
+
+ There are two mailing lists dedicated to the use and development of ngspice.
+
+ * ngspice-users@lists.sourceforge.net:
+   This list is the list for the users of the ngspice simulator.
+
+ * ngspice-devel@lists.sourceforge.net:
+   ngspice development issues. Developers and "want to be" developers should
+   subscribe here.
+
+ To subscribe the list(s), send a message to:
+   <ngspice-users-subscribe@lists.sourceforge.net>
+   <ngspice-devel-subscribe@lists.sourceforge.net>
+
+
+
+WEB SITEs:
+--------
+
+This project is hosted on Sourceforge.net.
+The home page is http://ngspice.sourceforge.net
+The page offering source code and user interaction is
+ http://sourceforge.net/projects/ngspice