Interesting question , references are worth " gold " these days and this a hot place for such information .
Unfortunately i have nothing out of the ordinary to report , i mostly read papers and stalk info anywhere i can find it . As for specialised market sources i don't have any except for some mining site i gathered here mostly from you .
I used to read the Northerminer paper edition and other magasines such as the economist , Baron stuff like that before the internet changed all that now i'm not suscriber or a consumer of paper except on rare occasions .
Sorry i can't bring my share to this store of knowledge wealth and thank's for the references
Tec.