RE:Other gold companiesHi Longrun. I found over years of investing that we little guys can't do the required research for picking companies. Who has the time to read every quarterly report? So if you find a sector that you like using macro economics, which we can follow, then invest using an etf in the entire sector. Most of my gold money is in XGD (large cap gold companies etf) and ZJG (small cap equal weighted gold companies etf). This eliminates company speicific risk. Then i own a few individual names, mostly large cap like Yamana, Kinross and lots of silver bullion. Lastly, i have a few micro cap names like SAU but this should represent only a tiny fraction of your precious metals allocation due to risk.
Good luck.