i think a distinction needs to be made here from photography as art and photography as journalism.... the two do overlap, but your goal as a photojournalist is to tell a story......
take a look at pulitzer prize winning photographs.... those photos tell stories... that's what your goal will be as a photojournalist....
although war photojournalism may not be your thing, i also recommend taking a looke at the photography of James Nachtwey -
http://www.jamesnachtwey.com/
although it is satire, this article raises some good points:
http://www.kenrockwell.com/tech/7.htm
Other articles from Ken Rockwell that are good:
http://www.kenrockwell.com/tech/howto.htm
http://www.kenrockwell.com/tech/notcamera.htm
http://www.kenrockwell.com/tech/books.htm
On Being a Photographer (book excerpt)
http://www.lenswork.com/obpexc.htm