Some Web Essays For Grad Students

From Nature, a bunch of substantial essays with hints for graduate
students in science and graduate supervisors, including time management
and collaboration. Probably good ideas in there for people in other lines
of work as well.

http://www.nature.com/naturejobs/magazine/editors-choice.html

They also have an article that links to this terrific document "Guide for
PhD students (and post-docs) aiming for a successful career in science" by
people at the Queensland Institute of Medical Research:

http://www.qimr.edu.au/research/labs/georgiat/Guideforphds.doc

"Doing a PhD should be fun, rewarding and be seen as a privilege. It's
the only time in your life that you can spend 100% of your working time
learning to do research, finding out new things, having freedom to pursue
new areas and getting paid for it, without any administrative or other
responsibilities. Those who stick it out do so because, despite the
relatively poor pay, long hours and lack of security, it is all we want to
do because of the intellectual satisfaction it brings, the excitement of
discovery, the freedom to make your own work schedule, the opportunities
for travel, the pleasure of being in an international community of
like-minded people and (for some people) the possibility that we might
actually help the human condition!"