A web based molecular viewer
MolView is an Open-Source, intuitive web-application to make chemistry and biology more awesome!
The viewer contains several 3D molecule rendering engines including GLmol, Jmol and ChemDoodle Web. Thanks to Jmol, you can also calculate stuff the MEP surface of a molecule which is pretty cool. The autocomplete input is perhaps the most awesome feature so far, you can just type something and MolView will generate suggestions based on three databases; PubChem, RCSB and the Crystallography Open Database. Thanks to a translation API from MyMemory, you can even search in your native language! (as long as this language is configured as primary or secondary language in your browser)