YouTube is a GREAT source for instructional videos, including help for interviewing and job searches. Some comments can be helpful if they're not from unpleasant people.
This is a good series... (Note we are NOT endorsing University of Phoenix. We strongly urge everyone to carefully check out any prospective educational institution's job placement claims BEFORE you enroll.)
YouTube is owned by Google. Search for other good resources, the list expands daily.
BEWARE of for profit educational institutions - see below!