II. For Graduate Students & Other Scientific Trainees in Research

Many of these sites describe skills necessary for success in graduate school, and thus science.

* Careers in Science and Engineering: A Student Planning Guide to Grad School and Beyond—an excellent online book that you can read for free.
Gradview—a very thorough, comprehensive website on graduate school.
* Why even bother getting a PhD? Do you even need one or will an MSc suffice? So long, and thanks for the PhD! provides an excellent overview of those questions as well as much other information.
An Insider's Guide to Choosing a Graduate Adviser and Research Projects in Laboratory Sciences—an important component in anyone's career is to choose suitable supervisors.
Graduate Student Humor—for some fun and relaxation, visit this page.
The Assistant Professor's Guide to the Galaxy—you've made it to the assistant professor level now—what's next?

Links with an asterisk (*) are especially noteworthy sites to visit.