Bernhard Reiter: Gnuplot
   Links and resource page.
   http://www.usf.uni-osnabrueck.de/~breiter/tools/gnuplot/index.en.html

Challenge Technical Guide - Gnuplot Tutorial
   Demonstrate the use of Gnuplot on a PC.
   http://www.challenge.nm.org/ctg/graphics/tutorial.shtml

Gnuplot FAQ
   Gnuplot FAQ document, in HTML, PDF, or plain text.
   http://www.gnuplot.info/faq/

Gnuplot Frontend
   pl is a Bourne-shell script aimed at portability, by Michael Sternberg. It uses awk to extract and possibly manipulate columnar data, including numerical derivatives on the fly. Runs on at least the following systems: OSF1/Digital/Tru64, HP-UX, FreeBSD, L
   http://www.phys.uni-paderborn.de/~stern/pl/

Gnuplot Tips Not So Frequently Asked Questions
   Introduction to gnuplot, basic use from start to the end, covering general information to how do I draw a 3-dim. grid graph from 3-Dim scattered data.
   http://t16web.lanl.gov/Kawano/gnuplot/index-e.html

Gnuplot Wiki
   User-contributed knowledge-base for the software.
   http://gnuplot.flexkb.net/

Gnuplot-mode for Emacs
   A major mode for the emacs text editor, including syntax highlighting, auto-completion, and useful key-bindings. Includes download and documentation.
   http://cars9.uchicago.edu/~ravel/software/gnuplot-mode.html

Gnuplot.py
   A Python package, that interfaces to Gnuplot allowing the use of Gnuplot from within Python to plot arrays of data from memory, data files, or mathematical functions.
   http://gnuplot-py.sourceforge.net/

GnuplotFortran
   A Fortran 90/95 API, which provides routines that enable direct access to gnuplot from within a program. SourceForge page, with project summary, news, and source download.
   http://sourceforge.net/projects/gnuplotfortran

Gnuplotme: Gnuplot Made Easy
   A simple intuitive front-end script for gnuplot, it also provides powerful mathematical and statistical capabilities for manipulating input data.
   http://www.jamjoom.net/tools/gnuplotme/gnuplotme.html

Using Gnuplot
   Introduction tutorial for plotting functions, scripts, and macros by Mathew Peet.
   http://mathewpeet.org/computing/gnuplot/

Visualize your data with gnuplot
   IBM developerWorks tutorial, explaining how to turn your data and functions into professional-looking graphs with Gnuplot 4.0.
   http://www-128.ibm.com/developerworks/library/l-gnuplot/

X Gnuplot Front End
   Xgfe is a GUI front end to the Gnuplot plotting package. Documentation and Source Code available.
   http://www.uni-koeln.de/rrzk/software/grafik/visualization/xgfe/xgfe.html