I see on a regular basis IT security students coming here and asking advice on which subject they could choose to study.
There are hundreds of books, websites, blogs and tools around, so I understand it may be difficult to get an overview clear enough in order to make an informed choice.
However, such questions requesting for a specific list of suggestions are out-of-topic here for several reasons (hardly fits a Q&A format, deprecate very quickly, the answer will most likely be per-student, etc.) and therefore are quickly closed.
Nevertheless, since this issue seems to occur on a relatively frequent basis and it is a sane behavior for the student to seek for expert advice, I think it could be useful to have a post on this site they could find giving a few clue where they should start.
Once on the right track, up to them to go as far as they would like!