Latvian regulator the Lotteries and Gambling Supervision Inspection (IAUI) has updated its blacklist of unlicensed online gaming operators with the addition of a further twenty domains, including high profile operators  PokerStars, Ladbrokes, PKR and BetVictor. The twenty new additions take the total number of Latvian blacklisted sites to sixty-one. The latest update includes 888ladies.com, which…