Language change has traditionally been driven by the geographic and social barriers separating populations. However, the rise of mass media (radio, television) and the internet in the 20th century has significantly reduced the impact of these boundaries.
This raises the question: How do modern media, particularly the internet, influence language evolution? With the internet, people worldwide can communicate, potentially leading to reduced regional variations within a language due to widespread exposure to a common form, and the creation of new online dialects or slang due to internet-specific communication styles.
While radio and television have been around for a while, the internet's influence is relatively new.
Are there existing studies on the impact of radio and television on language and on the internet's specific influence on language evolution, particularly in English?
I'm particularly interested in how these media forms affect the English language. Additionally, I want to ask for references to studies on the topic of the effect of media on languages. I believe that there may be such references given that radio and TV have existed for 100 and 70 years respectively, which I think is a time span long enough for a study of language change.