Earnings season is well under way, and some big tech names are up next. In the coming days, investors will watch Alphabet (NASDAQ: GOOGL) (NASDAQ: GOOG), Apple (NASDAQ: AAPL), and Facebook (NASDAQ: FB) report results for their most recently ended quarters. With market capitalizations in the hundreds of billions of dollars, investors all over the world will be watching closely. Ahead of their earnings releases, here’s a brief overview of some keys areas to watch.