The current dataset is composed of 1290 comments derived from the Facebook official pages of more than 100 Libraries, Archives and Museums (LAMs) from all over the world. The dataset is consisted from 11 different columns, that is, 11 different Facebook metrics: date, last day of data pre- processing, total number of days, message (initial), translate in English, post length, page, number of likes, number of comments (total), post interaction, link. These text data could be a valuable resource for researchers and social media administrators of LAMs with the purpose to set up well-informed social media strategies improve the content that they post, and thus users’ engagement.