I think this is a good spot to put this thread. For about a year I have been reading two great blogs that cover precious metal coins from various mints, including the US Mint.
The first deals with the US Mint and they have had excellent articles about American Silver Eagles, Gold Eagles and Buffs.
The link is
http://mintnewsblog.com/The same people behind that above mentioned blog also have a blog for world mints and they discuss world mint issues, such as Libertad silver and gold coins.
http://world.mintnewsblog.com/I don't know IF these have been mentioned before here but thought I would mention it in case they hadn't.