Emeritus Professor of Chemistry, Eastern Michigan University
From this web site you will be able to run programs to "draw"
2D- and 3D pictures of molecules.
m-builder you can quickly draw atom-sphere models, ball and
stick models and Lewis structures:
information about 2D drawing, check out: 2Dmolecules
is an example of a 3D-models of ammonia created online with MarvinSketch:
information about 3D drawing using MarvinSketch, check out: 3Dmolecules