Dice Holdings, Inc., whose Dice.com business operates from Urbandale, today reported that revenues in the second quarter increased 28 percent to $66.5 million, due primarily to revenues from businesses it acquired within the past year, the company said in a release. Overall recruitment activity on its professional recruiting websites was fairly consistent in the technology, energy, health care and hospitality sectors during the second quarter, the company said, while activity improved in the financial services sector. The IT Job Board, acquired in July 2013, HEALTHeCAREERS, Hcareers and BioSpace, acquired in November 2013, and OilCareers, acquired in March 2014, contributed revenues of $14 million in the second quarter. The company's net income for the quarter ended June 30 totaled $7.2 million, resulting in earnings per share of 13 cents.