Other competitors in the technology sector include: Pandora Media (P), Yahoo!

FORBES: Earnings Preview: LinkedIn

Women dominate a p.r. sector that has exploded in size.

FORBES: Women, Technology, and Careers

Other competitors in the energy sector include: EV Energy Partners, L.P. (EVEP), New Concept Energy (GBR), and Rex Energy Corporation (REXX).

FORBES: Earnings Preview: Range Resources

Other competitors in the utilities sector include: Energy Transfer Equity, L.P. (ETE), DCP Midstream Partners (DPM), and Kinder Morgan Energy Partners LP (KMP).

FORBES: Earnings Preview: Energy Transfer Partners LP

Apple is primarily a consumer-oriented company with little presence in the enterprise PC sector, where computer makers like Dell, H-P and Lenovo dominate the business notebook market.

FORBES: Apple Just A Nibbler Into HP And Dell

More or less, every company in the capital goods sector has been reporting profits that are better than expectations, says Andreas P.

FORBES: Siemens Sends A Strong Signal On Growth