Here is an “Introduction to Indulgences” from www.catholic.org – the “fact driven, faith informed” pro-catholic website. After the introduction you will read “Myths About Indulgences” from www.catholic.com – These are both Catholic websites and gives the current state of affairs and apologetics from a Catholic standpoint.
It is self explanatory and deserves no additional comment from myself. Except to say “OH MY GOD THEY STILL DO THIS CRAP?”