Australian shares extend weekly gains By: MarketWatch January 19, 2012 at 19:08 PM EST Australian shares advance Friday, as well-received European bond auctions and better-than-expected U.S. jobs data helps stocks extend weekly gains. Read More >> Related Stocks: Anglogold Ashanti Ltd ADR Boral Ltd Brambles Ltd Paladin Energy Ltd Rio Tinto Plc ADR Woodside Energy Group Ltd