The Department of Justice has filed a lawsuit against Google, accusing the company of using its financial resources to stifle competition and maintain a monopoly in the search engine market. The trial, expected to last two months, will determine if Google violated the law and could result in significant changes to the company's business. Google denies the allegations and argues that there are multiple ways users access the internet. The lawsuit is being compared to the antitrust case against Microsoft in the late 1990s, with the outcome potentially impacting other internet giants facing similar investigations and lawsuits.