For all of the students that can read German, there is a nice Repetitorium available in the web pages made and kept by prof. dr. Peter Pilhover; Neutestamentliche Repetitorium.
The Repetitorium is not yet complete, but it already covers most of the New testament; you can see the Table of Contents here. The various sections are avaiable as .pdf files. I have not checked all, but made a brief reading of his pages on 1 Peter. Here he advocates a date for this letter later than what I would argue ( go here);accordingly he does not suppport the authorship of Peter either. But all in all, the pages are nicely set up, and easy to read.