Visualization software that can run outside the browser: Jmol(Requires Java) PyMol(Requires Python) Rasmol Avogadro Note that all of these will be useful for visualizing protein structure if you are planning to work at the interface of chemistry and biology. 2-D drawing programs: ChemDraw: the standard in the field. OSU has a site license for this commercial software. JChemPaint (requires Java) A collection oflinks to online Organic Chemistry resources: Web-ster's Organic Chemistry IUPAC rules:  https://www.acdlabs.com/iupac/nomenclature/ (see the 1979 recommendations) Rules for drawing molecules and expressing stereochemical information: https://www.iupac.org/publications/pac/2006/pdf/7810x1897.pdf (requires either you be on campus or that you use the OSU proxy server) Experimental data on leaving group ability: https://proxy.library.oregonstate.edu/login?url=https://www.nrcresearchpress.com/doi/pdf/10.1139/v60-276 (also need on-campus or proxy server access)