Some interesting links

Useful

Cappelli: Dizionario di Abbreviature
Chartae Latinae Antiquiores [index]
Collatinus: lemmatiseur et analyseur morphologique de textes latins
Corpus Corporum Patrologia Latina: Patrologiae cursus completus. Series Latina / J.-P. Migne
Glossa, a Latin dictionary
Ductus: a simple guide lines generator for calligraphers
Earlier Latin Manuscripts: Tools for studying the scripts of the oldest Latin manuscripts
Medieval calendar calculator
Migne. Patrologia Latina (I)
Migne. Patrologia Latina (II)
Spanish-Latin dictionary

Journals

Digital medievalist
e-Spania
Early Medieval Europe
Gazette du livre médiéval
Journal of Medieval Iberian Studies
Revue d’Histoire des Textes
Scriptorium [index]
Speculum

Institutions & Associations

APICES: Association paléographique internationale culture, écriture, société
CIPL: Comité international de paléographie latine
CID: Commission internationale de diplomatique
Sociedad Española de Ciencias y Técnicas Historiográficas