The Web of Data has grown significantly in recent years, not only in the amount of data but also in the number of data sources. In parallel with this tendency, owl:sameAs links have been increasingly used to connect equivalent data published by different sources. As a consequence, it becomes necessary to have a routine for the identification and maintenance of these connections. In order to automate this task, we have developed the MsA Framework - sameAs Materialization to materialize and recompute owl:sameAs links between local databases and data published on the Web. These connections, once identified, are materialized along with the local data and recomputed only when necessary. To achieve this goal, the tool monitors the operations (insertion, update and deletion) performed on local and remote records, and for each type of operation it implements a maintenance strategy on the links involved.