If you're looking for work in the tech industry and you're not on Twitter yet, do yourself a favor. Close Facebook, minimize Monster.com for a few minutes, and go to Twitter.
Set yourself up with a free account and then, before you even set up your profile page, type "hiring" in the search field at the top of the page. Then get yourself a coffee because your screen is about to be inundated with job leads.
Yes, many of the tweets with the word "hiring" will be spam messages for work-at-home scams. Many of them will be from people looking for work. Many will be irrelevant to what you do, or based in a country you have no desire to live in. Between these, however, you will find a few gems.
Many recruiters, companies and job boards use Twitter to get the word out. Many others pass on links to their friends and followers on Twitter about jobs they have spotted on other websites.
Of course doing a basic search like this is just the beginning. Stay tuned and sign up for the newsletter for a full examination of how to add Twitter to your job search efforts.