Close Alphabet Inc. (GOOGL) advertising revenue will likely take a massive hit in 2020, with thousands of companies under financial stress forced to cut back to keep their balance sheets in the green. This is a big deal for the tech giant because those receipts comprise the vast majority of total revenues (see: How Alphabet Makes Money), raising doubts about the stock's capacity to recover heavy losses posted in the first quarter decline. Needham's Laura Martin warned in March that travel industry ad spendi ...