Social media, how the way in which we obtain information on books has changed in 20 years

Facebook saw the light of day for the first time in 2004. Although there had been other networks in the previous decade, this one impacted the world differently and was the first to be used in the publishing industry, by publishers, authors and booksellers, as a means to reach readers directly. Today, 20 years later, sites such as X, Instagram and Tik Tok are used as essential places to inform people about books, how have they evolved and what consequences has this had in these 20 years?