I joined Twitter last month after hearing from my brother, Mike Axelrod, who is a programmer and semantic web expert, how he got a job because he Tweeted:


One of his followers saw the Tweet about Drupal and replied back that their organization was looking for a Drupal programmer. He ended up getting the job.
Here's an article from Mashable: How to Find a Job on Twitter.
And, if you are looking for an expert on the Semantic Web, or Drupal for that matter, here is a link to Mike's Digital Laboratory.
Personal Aside: If you are wondering why I would blog about my brother..., I would just like to add that I come from a long line of tech geniuses. Contrary to rumor, my father, Art Axelrod, did not invent the Internet. He did however, set up the first Intranet at Xerox. From time immemorial Axelrods have been Engineers, Draftsmen, Locksmiths, etc.
I cut my teeth playing "Star Trek" on green bar paper with a portable terminal Dad would bring home from work, acoustic coupler and all. My grandfather Nathan, would drive us around the New York city area and show us bridges and overpasses that he helped design and draw blueprints for. When I was younger I claimed I did not want to be an Engineer or work with computers. You can see how well that worked for me. :-)