I have a good website for those who wish to not only learn about alchemy but other hermetic studies as well its called the international alchemy guild www.alchemyguild.org/ it has a college to teach alchemy as well www.flamelcollege.org . And those who join the guild I'm going to open the spiritual philosopers stone and how to obtain it.Some alchemist have been writting about the physical philosopers stone turning lead into gold and this subject will also be addressed,I have been studing both sides of the philosopers stone for about 12yrs.I just join'd this alchemy guild and find the archives very useful they also have manuscripts as well but all in all its a good study and a useful tool too.