In June, over 396,600 ads posted for management positions. Ranked in the U.S. top ten occupations with advertised online vacancies were healthcare practitioner and technical workers (387,300), business and financial occupations (323,400), computer and mathematical (313,100) and architecture and engineering jobs at 199, 400, according to The Conference Board Help-Wanted Online Data Series, which measures the number of new, first-time online jobs and jobs reposted from the previous month on more than 1,200 Internet job boards.

Although the number of online advertised ads declined in 39 states in June -- total online job ads were 4,280,400 in June, a slight drop of 94,000 or two percent from May -- over 396,600 ads posted for management positions.

In an interview, Gad Levanon, economist at The Conference Board, said, “Tight labor markets in many areas of the country and in specific occupations and industries like IT and healthcare are forcing companies to advertise more aggressively than last year in order to find the employees they need.”

For the first time, Nevada posted the highest ads rate, with 4.91 vacancies for every 100 persons in the state labor force, the highest rate in the nation, moving up from third place and sixth place in the last two months. Alaska (4.75) and Colorado (4.56) were close behind in the number of advertised vacancies when adjusted for the size of the state labor force.  States where the number of unemployed persons looking for work significantly exceeded the number of online advertised demand included Mississippi (4.1) and Michigan (3.9).

The volume of online advertised vacancies in California was significantly above the next highest states, Texas (363,700), New York (302,600), Florida (262,100) and Illinois (197,000), the survey said.

There were 2.8 advertised vacancies online for every 100 persons in the labor force in June.