A lot of designer drugs, specifically phenethylamines and tryptamines, are in a kind of semi-legal state where lawmakers are just unaware of them or haven't gotten around to criminalizing them yet, but the laws regarding specific substances change all the time. Is there a resource that provides up-to-date information about the legal status of these chemicals, so I can know what, if any, legal ramifications I will face for being caught with them?