What's Smiles		Smiles Draw		MOPAC XYZ File to Smiles
		SMILES		MOPAC inter-coordinate File to Smiles
Data Base Search		Smiles 3D Editor		Smiles Viewer

Smiles Draw : Chemical Structure Drawing Applet. You can convert Chemical Structure to SMILES. 99.9.8

Smiles 3D Editor : Make 3D structure and convert it to SMILES. Work only Windows version of IE(4.0) or NN(4.5). 99.9.8

Ref.

SMILES,SSMILES Tutorial
http://www.daylight.com/dayhtml/smiles/

An interactive SMILES depiction utility
http://www.daylight.com/daycgi/depict

drawing of 2D chemical structures
http://www.ice.mpg.de/~stein/projects/JChemPaint/

produces a 2D drawing of the underlying structure
http://vanilla.ice.mpg.de/~stein/projects/SmilesViewer/

http://vanilla.ice.mpg.de/~stein/projects/SmilesViewer/SMILESViewerDemo.html

Babel
Babel is a program designed to inter convert a number of file formats currently used in molecular modeling. The program is available for Unix (including Linux), DOS and Macs.
http://mercury.aichem.arizona.edu/babel.html