Quick job search tip this week but one I think is really important. When aggressively looking for a job you should be thinking shotgun approach...but if you are not in a really active search you should be doing a sniper search.
Another way to say this is when you're in a desperate situation and really (like, REALLY) need a new job you should have as broad a search as possible. Generate as many interviews as you can and find a better opportunity (aka shotgun blast)
When you're pretty happy, but wouldn't mind a change...than an extremely targeted and specific search is in order. You want to find the perfect gig and upgrade your situation. (aka sniper or precision rifle)
Make sense? The key to remember is that you should change your job search strategy based on your situation and make sure you are optimizing for the best possible outcome.
Good luck out there!