Where can one learn about the dangers of buying steroids online?

No, but you can get scammed.

Stay away from eroids.com naps gear.com steroids.com. Rule of thumb, if they except credit card payment they are scammers.

There are plenty of reputable pharm grade steroids you can get on line, joining forums and researching and look at reviews and you will find the best supplier's. For a good domestic supplier email geargoat@hushmail.com. You will never be disappointed by his quality. there is even online labs you can send them a sample and they will test the quality for you.. I need to make a new order, so if you do tell him mnkybonz sent you I will get a good discount for referring you. His ships fast and his product list is full of good labs. Just ask for his list and he will instruct you from there.