The British Library Medieval Manuscripts blog reports that seventy-five more manuscripts are on-line. These seem to be the last group in the current project (hopefully they will get more funding to keep up the good progress). In this batch are a mountain of patristic and ecclesiastical manuscripts including homilies and such, and the following biblical ones. ...Septuagint, New Testament, and related manuscripts.
Also, over at hmmlorientalia, Adam McCollum collects the British Library's Medieval Manuscripts Blog's posts on their online Greek manuscripts: Posts on the digitized BL Greek manuscripts.
A couple of related PaleoJudaica posts are here and here.