Despite macroeconomic uncertainty, networking giant Cisco Systems (NASDAQ: CSCO) expects to grow revenue during its fiscal third quarter, results for which will be announced on Wednesday. Weakness in Cisco's fast-growing data center segment during the second quarter was concerning, but the company expects this to be a temporary issue. The security business is still growing fast, with Cisco aiming to become a diversified provider of security solutions. Customer relationship management (CRM) software provider Salesforce.com (NYSE: CRM) will also report results on Wednesday. The company continues to grow rapidly and produce plenty of free cash flow, but Salesforce's GAAP earnings remain essentially non-existent. Free cash flow is far from perfect, and Salesforce will eventually need to prove to investors that it can produce consistent profits. Following some terrible results from fellow retailers, Wal-Mart Stores (NYSE: WMT) will report its first-quarter numbers on Thursday. Earnings will take a hit due to higher wages and investments in training and e-commerce, but Wal-Mart does expect to grow comparable sales in the United States. One of Wal-Mart's e-commerce initiatives, online grocery ordering and pickup, looks particularly promising. Click through the following slideshow for more details on these three stocks to watch. A secret billion-dollar stock opportunity The world's biggest tech company forgot to show you something, but a few Wall Street analysts and the Fool didn't miss a beat: There's a small company that's powering their brand-new gadgets and the coming revolution in technology. And we think its stock price has nearly unlimited room to run for early in-the-know investors! To be one of them, just click here.