I’d like to recommend Fourth Century, an academic blog. One excellent thing that they have done is to indicate the authors contained in the Clavis Patrum Latinorum and Clavis Patrum Graecorum. There are various lists of authors and works, all very useful. Translations are clearly indicated with authors. The intention is to raise the quality as compared to amateur sites, and a praiseworthy aim it is. My thanks to Ben Blackwell for the tip.
Talk of the CPL and CPG raises the question: isn’t it time these were online? Thick expensive books available only in research libraries were the best we could do in 1990. In 2008, these roadmaps of ancient literature should be online.