Direct exposure is best via META Platforms (META), the parent company behind Facebook, Instagram, and WhatsApp, where informal language fuels engagement, user-generated content, and ad revenue. Broader exposure comes from Alphabet (GOOGL), whose YouTube ecosystem thrives on casual language and meme-driven content, and from Snap (SNAP), whose messaging and social features foster informal tones among younger users. Entrepreneurially, build a platform or toolkit that helps brands measure and optimize tone for informal language, or create AI-powered templates that tailor copy to casual audiences.