One of the biggest media organisations in the Nordics is in advanced talks to acquire a stake in the Business Post Media Group. Bonnier, a Swedish publishing giant that has 175 companies across 18 countries, is understood to be preparing to acquire a minority stake in the group, which is best known for publishing The Business Post newspaper. Until now, The Business Post has been the only fully owned Irish Sunday newspaper, but with this investment, it would lose that distinction. Under what, if any, terms Bonnier could increase its stake in the business is unknown. In an email to The…