Logo Resources
http://el.media.mit.edu/logo-foundation/resources/index.html

Logo Programming Resources
http://www.stager.org/logo.html

A Logo Primer
http://el.media.mit.edu/logo-foundation/logo/turtle.html

Learning Logo Programming by Mike Koss
http://mckoss.com/logo/

Wikipedia: Logo Programming Language
http://en.wikipedia.org/wiki/Logo_programming_language

MathsNet Turtle Logo Applet
http://www.mathsnet.net/logo/turtlelogo/

Logo: A Turtle for the Teacherhttp://www.ecu.edu.au/pa/ecawa/sig/logo/paul_dench/turtle/

StateGrow 2.0
http://www.tucows.com/preview/203842

Logo Foundation
http://el.media.mit.edu/logo-foundation/
Logo Download Information
http://www.mathcats.com/gallery/logodownloadinfo.html

Investigations Math Logo
See various Geo-Logo Applications that come with Investigations Math Program

National Library of Virtual Manipulatives: Logo
See Ladybug Leaf, Ladybug Mazes, Turtle Geometry & Turtle Geometry Activities
http://nlvm.usu.edu/en/applets/controller/query/query.htm?qt=

Turtle Tracks
http://turtletracks.sourceforge.net/

What Is Logo?
http://el.media.mit.edu/logo-foundation/logo/

Download StarLogo
http://education.mit.edu/starlogo/

Math Playground - Logo Programming
http://www.mathplayground.com/LogoProgramming.html

Logo Programming for Kids Using MicroWorlds
http://www.kidsandcomputers.com/SiteToc.cfm

Wikipedia: Logo Programming Language
http://en.wikipedia.org/wiki/Turtle_graphics

NCTM Illuminations: Can the Turtle Get to the Pond?
http://illuminations.nctm.org/index_d.aspx?id=396