NEW YORK - About 4,947,100 online job postings appeared on leading Internet job boards in June, an increase of 232,000 from May, the Conference Board reported Monday.

"Online labor demand in the first half of 2012 increased by an average of 104,000 per month, but about one-third of both the States and the 100 largest metro areas are still below their pre-recession highs for labor demand," said June Shelp, vice president at the Conference Board. "As of June, almost half of the occupational groups have Supply/Demand rates at or below 2.0. However, most of these are in the professional categories, such as business and finance, healthcare professionals, and management. Although we've seen improvement, other categories like construction, building and grounds maintenance, and personal care are still struggling with high Supply/Demand rates."

The Supply/Demand rate in May (the last month for which the national unemployment number is available) was 2.70, indicating that there are 2.7 jobless workers for every online advertised vacancy. Nationally, there are 8 million more unemployed workers than advertised vacancies, the Conference Board said.

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