Nice. Some suggestions: 1) Show some expanded information on hover; 2) Put (more) links to Wikipedia/CanIUse; 3) Allow some kind of resize. Even if I zoom out in Chrome I cannot see all the periodic table at once; 4) Maybe the rows must be organized by "relevant" ratio. So currently used will be on top and obsolete/deprecated in bottom; 5) Yet on 4, maybe we can customize the order? 6) Missing a "Server side" column for ASP.Net, Php, etc... 7) Allow hide/show columns