Instant Messaging Adoption - Instant messaging became mainstream, reaching parity with email in 2005 [1] - Young people heavily adopted instant messaging, distinct from texting [1] Instant Messaging Usage - Users relied on platforms like AOL Instant Messenger, especially on family computers [2] - Texting was primarily used for logistical arrangements due to cost limitations [4] - A common texting scenario involved coordinating meeting locations [3][4]