Smart Pendulum
Java applet explores a pendulum with rope of variable length. The solution implements 4-th order Runge-Kutta method for differential equations.
http://odin.prohosting.com/~evgenik1/pend.htm

Pendulum Energy
Pendulum Energy has helped its clients map out processes and streamline those processes key to increasing productivity and profitability
http://www.pendulumenergy.com

The Simple Plane Pendulum
This applet illustrates the simple plane pendulum, with or without damping. The user enters the damping coefficient and initial conditions, and the applet animates the pendulum's motion and plots the angular velocity versus the angle. Such a plot is called a phase portrait.
http://www.iopb.res.in/~vshenoi/scienceday/fundemoapplets/JAVA/pendulum/pendulum2.html

Ophioglossum pendulum
Photographic image.
http://www.botany.hawaii.edu/faculty/carr/images/oph_pen.jpg

Dierama pendulum
Information on this species with several photographs.
http://www.plantzafrica.com/plantcd/dieramapend.htm

Trillium pendulum
Providing botanical, folk-lore and herbal information, plus organic herbs, and herbal products.
http://www.botanical.com/botanical/mgmh/b/bethro34.html

Three-Degree-of-Freedom Pendulum
Java simulation.
http://odin.prohosting.com/~evgenik1/pend3.htm

The Pendulum Lab
Pendulum dynamics, Java Applets
http://monet.physik.unibas.ch/~elmer/pendulum/

Windhelm
Windhelm wind vane self steering systems for sailing boats
http://www.windhelm.com.au

Animations for physics
Animations in physical sciences, animations pour la physique l'histoire et la géographie. Site wontu. Pascal Bigot
http://www.wontu.fr