It does not seem that there are many Traditional Catholic newsletters in English - certainly not among those made freely available on the web - that are better than the one prepared by the English apostolate of the Priestly Fraternity of Saint Peter: Dowry (Summer 2012 edition here). It is to the great credit of Fr. A. de Malleray FSSP, that he was able to introduce the best features of Traditional Catholic newsletters and periodicals in France to this quarterly, and still make it available free of charge on the web shortly after publication.
The current newsletter includes two events that we heartily recommend: the Vocation discernment weekend, on December 14-16, 2012, at St. John Fisher House (the FSSP English House, in Reading); and the Clergy retreat in Bavaria, on April 15-19, 2013 (details on pages 18-19 of the newsletter).