Euclid

Byrne's Edition of Euclid
Oliver Byrne's edition of Euclid with colours used instead of labels. A beautiful piece of artwork.
http://sunsite.ubc.ca/DigitalMathArchive/Euclid/byrne.html

Euclid Elements - the Perseus Project
Pages giving the full Heath text of Euclid's Elements, together with the Greek text.
http://www.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus%3Aabo%3Atlg%2C1799%2C001&query=toc

Euclid in Verse
A proof of one of Euclid's theorems in verse, by Samuel Taylor Coleridge.
http://etext.lib.virginia.edu/stc/Coleridge/ascii_files/geometry_poem_letter.html

Euclid of Alexandria
The Elements organized by book volume.
http://math.furman.edu/~jpoole/euclidselements/euclid.htm

Euclid's Elements
Welcome to the Platonic Solids as Demonstrated in Book Thirteen of Euclid's Elements.
http://www.dform.com/projects/euclid/home.html

Euclid's Elements
Edited by D.E. Joyce. HTML text with Java applets.
http://aleph0.clarku.edu/~djoyce/java/elements/toc.html

Euclid's Elements - Joyce's Java version
This dynamically illustrated edition of Euclid's Elements includes 13 books on plane geometry, geometric and abstract algebra, number theory, incommensurables, and solid geometry.
http://aleph0.clarku.edu/~djoyce/java/elements/elements.html

Introduction to the Works of Euclid
An essay on the Elements (by Don Allen).
http://www.math.tamu.edu/~dallen/history/euclid/euclid.html

Introduction to the Works of Euclid
With an Emphasis on the Elements. By Donald Lancon, Jr. (student).
http://www.obkb.com/dcljr/euclid.html

The Visual Elements of Euclid
New edition of the text of Heath, transformed into an extensively illustrated edition.
http://www.visual-euclid.org/