If you are registered, you get access to the members only section, can participate in the buy & sell second hand forum and last but not least you can reserve your preferred username before someone else takes it.
Hahaha...I knew there were a catch somewhere.. Great idea with a "coticule internet resource".
I find the historical aspects very interresting,regarding mining,usage etc. So I`ll see if I can find something you missed,not very likely though.