Preparing for a major update in 2016, the site has done small steps to expand provided info to users. An easy task to complete in fact, direct links to information provided by wikipedia and IUPAC/CIAAW regarding elemental properties (eg. atomic weights) are now available. The data are externally linked, therefore I can not guarantee their integrity and validity; however, coming from international trusted organization such as IUPAC, this risk is rather minimal.
Feel free to explore atomic properties and drop me a line in case interested to expand the magneticmoments.info data. Next stop is X-rays!