Optus is Australia's second largest telecommunications company. It has seen consistent revenue growth from 2003-2007, with operating expenses maintained below 75% of revenue. Key factors contributing to Optus' profitability include controlling expenses, increasing revenue per employee through productivity, infrastructure investments, competitive pricing and new products. Potential risks include rising operating costs, decreased employee productivity, under-investment in infrastructure, lack of competitive pricing and new products. Business intelligence on these factors can be obtained from annual reports, government data, surveys and research reports to minimize risks to Optus' profits.