HARTFORD, Conn. (AP) — A report says gambling revenue at Indian-run casinos edged up slightly in 2010, reversing a first-ever drop the previous year and showing new strength as the economy improves. The study, "Casino City's Indian Gaming Industry Report," said revenue at Indian casinos was $26.7 billion in 2010, up from $26.4 billion in 2009. In contrast, revenue at commercial casinos declined 0.1 percent and the businesses are expected to soon be overtaken by Indian casinos. According to the study, Indian-run casinos, which were less than 20 percent of casino gambling in 1993, now account for nearly 44 percent, just slightly less than commercial casinos' share of 45 percent. An economist at Nathan Associates Inc. and author of the report says Indian casinos appeal to gamblers because they're newer and operate in markets with less competition.