Beginning in the 1980s and continuing into the 21st century, the rise of personal computing and the internet revolutionized how Americans communicated, conducted business, and accessed information. These technological advances reshaped industry, education, and social interaction in unprecedented ways. Among these developments, the introduction of social media platforms in the early 21st century played a crucial role in connecting individuals and mobilizing social movements. One such platform launched in 2004 allowed users to create personal profiles, share updates, and connect with friends. Which of the following platforms is being referred to?