Chemplore is an easy to use, convenient front end for PubChem and the PDB.  Given a compound name or PDBID, Chemplore provides structures in a number of different representations, including a rotatable 3D viewer and 2D/3D sdf.  Several other features make getting useful information on small molecule(s) straightforward and quick.  Dr. Brannigan’s favorite feature is “Compare” : try comparing 4 inhaled anesthetics.