This paper articulates a model for examining medieval vernacular multi-text codices which
is based on the dynamics we see in the contemporary use of social media, particularly
personal blogs. Both media democratise the use of an existing specialised technology,
accelerate the development of this technology, and serve as vehicles for the maintenance of
social relationships. This model is illustrated with examples drawn from The Findern
Manuscript, Cambridge University Library, MS Ff.1.6, and the blog In the Middle.