Fokker Dr 1
This site will teach you everything you need to know on the Fokker Dr 1
http://fokkerdr1.freehosting.net

KaleidoTile
Software for Macintosh and SGI to create and manipulate tessellations of the sphere, Euclidean plane and hyperbolic plane, and to see how the Platonic solids are related to tessellations.
http://www.geom.uiuc.edu/software/download/KaleidoTile.html

Little Red Plane (Animated Short)
Little Red Plane is a short animation done by a group of students from Art Center College Of Design.
http://www.shadedbox.com/littleredplane

Plane Trees
London plane tree and other plane trees (Platanus) grown in Greater London.
http://www.aranya.co.uk/planes/

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

Plane-Wave Self-Consistent Field (PWscf)
Programs for electronic structure calculations within Density-Functional Theory and Density-Functional Perturbation Theory, using a Plane-Wave basis set and pseudopotentials. PWscf is released under the GNU General Public License.
http://www.pwscf.org/

Public Works, Online Edition
Public Works serves industry professionals, consulting engineers, and contractors who design, construct, operate, maintain, and rehabilitate public works and infrastructure projects and programs in cities, counties, states, utilities, and special districts.
http://www.pwmag.com/

Xah: Visual Dictionary of Special Plane Curves
Math. A visual dictionary of plane curves, with history, definition, formulas, properties. 410 HTML pages. 1000+ illustrations, 82 animated illus, 65 GeoGebra applets, 97 Mathematica notebooks.
http://www.xahlee.org/SpecialPlaneCurves_dir/specialPlaneCurves.html

Tri-Plane, Inc.
It's a door and 3 way mirror and a kit.
http://www.tri-plane.com/

The Search for a Finite Projective Plane of Order 10
By C.W.H. Lam.
http://www.cecm.sfu.ca/organics/papers/lam/paper/html/paper.html