As part of its latest crackdown on Big Tech, the European Union has picked out 22 so-called "gatekeeper" services, run by six of the biggest tech companies in the world to face new rules under Digital Markets Act (DMA). The rules are seen as a companion piece of legislation to the Digital Services Act (DSA), which imposes greater responsibilities on technology companies for the content shared on their sites. The DMA has been designed to level the playing field between Big Tech companies and smaller competitors. The Digital Markets Act, or DMA, which takes effect early next year, will impose a rigid regime of dos and don’ts on Big Tech companies. Following the commission’s announcement this week, most platforms will have effectively six months to re-engineer their services to fall in line with the rules, or to make legal challenges against the designation decisions.