1. WhatsApp has reached a significant milestone, surpassing 100 million monthly active users in the United States. This achievement solidifies WhatsApp's position as one of the most widely used messaging apps in the country, further cementing its dominance in the global messaging landscape.

2. The article highlights the rapid growth of WhatsApp, which has seen a surge in user adoption over the past few years. This growth can be attributed to the app's user-friendly features, cross-platform compatibility, and the increasing reliance on digital communication channels, especially during the COVID-19 pandemic when in-person interactions were limited.

3. The article also mentions that WhatsApp's parent company, Meta (formerly Facebook), has been working to monetize the app through the introduction of business-focused features and tools. This move aims to capitalize on WhatsApp's large user base and generate revenue streams, as Meta continues to diversify its offerings beyond its core social media platforms.