The Chronicle of Higher Education has some excellent
advice columns. These are especially helpful for people
contemplating academic careers, but much of the advice
is good for anyone.

Graduate School Is a Means to a Job

How Not to Blow an Interview

Making it Past the First Round

The Professor is In website has some excellent advice. It is
written from the perspective of an academic in social sciences,
but much of the advice applies to an academic career in any
profession. For example, I recommend the posts below.

What To Do Now in Graduate School