ptable.com is an amazingly detailed resource with everything you could ever want to know about the elements. It is an interactive periodic table with dynamic layouts showing names, electrons, oxidation, trend visualisation, orbitals, isotopes and common compounds.
I have been looking for a practical chemistry site that contains up to date and a comprehensive list of practical ideas and although there are so many great resources out there nothing was quite what I was looking for, so I decided to make my own. All the resources are free to use. As time goes on I would like to continue adding to this resource. If you have any ideas that could be featured I would love to hear from you.