UK investigates Google's market dominance in search, considering rules for more user choice.

The UK's Competition and Markets Authority (CMA) is investigating Google's market dominance, proposing changes to increase competition. Google handles over 90% of UK searches and is used by 200,000 businesses for ads. The CMA's potential changes could include screens offering users choices of search engines and more transparency for publishers. Google has agreed to work constructively with the CMA but finds the suggestions broad and unfocused. The final decision is expected in October.