I know someone who's been looking for work for awhile. He was signed up with some contract labor agencies, searching online, etc.
Last week, he was in the library using the computers and had his phone switched off. When he left, he found a message from one of the agencies about an opening. He called, and it was already filled. That was pretty typical.
Today he accepted a job offer. He found the opening.... in the Star Tribune classifieds.