While there are specific services (for example @jobangels - people sharing people and jobs; @twitterjobsearch - a twitter search engine for jobs; and @seojobs - jobs in the field of SEO - here's an (older) post listing dozens of resources in categories http://mashable.com/2009/03/13/twitter-jobs/), the more important issue is helping people understand how to use this tool (and its ecosystem) in their job search... more »
Tweetajob is an exciting new online recruitment platform that advances the use of Twitter for recruiting talent. Jobseekers receive filtered job tweets that match their location and career interests. The service is free to jobseekers. Recruiters pay a nominal fee to post jobs through a simple interface; jobs are tweeted instantly to jobseekers’ Twitter timeline or to their mobile phones.