Sites

Tessellated, Interlocking Concrete Pavers and Molds (Popularity: )
http://www.geckostone.com/pavers.html
Pictures of some concrete tilings.

Symmetries, Patterns and Tessellations (Popularity: )
http://www.geometer.dk/tess/
Constructed with Geometer's Sketchpad by Allan Bergmann Jensen.

Tessellations with Java (Popularity: )
http://dimacs.rutgers.edu/~rkrane/tessell.html
Examples and source code.

Hop's Escher Tessellation Tiles (Popularity: )
http://www.tabletoptelephone.com/~hopspage/HopsTiles.html
Escher-like tessellations.

Tessellation Tutorials by Suzanne Alejandre (Popularity: )
http://mathforum.org/sum95/suzanne/tess.intro.html
Tutorials and templates for making tessellations using ClarisWorks, the Geometer's Sketchpad, HyperCard, HyperStudio, and straightedge and compass, including step-by-step instructions for classroom activities.

Artlandia SymmetryWorks (Popularity: )
http://www.artlandia.com/SymmetryWorks
Adobe Illustrator plug-in that automates creation of surface designs and ornaments based on seventeen wallpaper groups. On-line purchase.

Totally Tessellated (Popularity: )
http://library.thinkquest.org/16661/
An introduction to tessellations explaining the basic underlying mathematics, and with many examples from real life.

The Penrose Tiling at Miami University (Popularity: )
http://www.lib.muohio.edu/epub/tilings/doc.html
A summary of the history behind the Penrose tiling in the math department at Miami university.

The 14 Different Types of Convex Pentagons that Tile the Plane (Popularity: )
http://www.mathpuzzle.com/tilepent.html
Graphics and references.

Tessellation Links (Popularity: )
http://mathforum.org/sum95/suzanne/links.html
Compiled by Suzanne Alejandre for the Math Forum.

Tessellation and Photography (Popularity: )
http://members.home.nl/wouternimmo
A study for the endless possibilities of tessellating the plane based on the work of Dutch graphic artist M.C. Escher.

Hyperbolic Tessellations (Popularity: )
http://aleph0.clarku.edu/~djoyce/poincare/poincare.html
Explanations and graphics.

Symmetry and Pattern: The Art of Oriental Carpets (Popularity: )
http://mathforum.org/geometry/rugs/
Resources compiled by the Math Forum.

Grotesque Geometry (Popularity: )
http://www.cromp.com/tess/home.html
Andrew Crompton's tiling and tessellation images.

Pentagons that Tile the Plane (Popularity: )
http://burtleburtle.net/bob/tile/pentagon.html
Known solutions and a new recipe.

Tiling Plain and Fancy (Popularity: )
http://www2.spsu.edu/math/tile/
Tiling from the mathematical and historical viewpoint by Steve Edwards. Provides a number of examples of various types of tiles that tile the plane and includes periodic tiling plus Penrose's ...

The Geometry Junkyard: Tilings (Popularity: )
http://www.ics.uci.edu/~eppstein/junkyard/tiling.html
A collection of links.

Java Kali (Popularity: )
http://www.geom.uiuc.edu/java/Kali/
A program for drawing symmetrical patterns based on any of the 17 wallpaper groups, as well as several frieze and rosette groups.

Hans Kuiper (Popularity: )
http://web.inter.nl.net/hcc/Hans.Kuiper/
Hans Kuiper's work. Tessellations and optical art. Also tessellation software with the 17 wallpaper groups.

Intriguing Tessellations (Popularity: )
http://members.aol.com/tessellations/
By Marjorie Rice. Pentagons that tile the plane: details and links.