I'm a big proponent of Twitter, but a lot of people I know aren't. I think of Twitter as a dance: To build a community on Twitter for your job search, you need to strike a delicate balance between professional and personal. It isn't for everyone, especially given that it can take time and energy to build a community--and there are great options offline for networking as well.
Here are three Twitter-based sources of job search help which do not require your active participation on Twitter. In fact, you can use two of these resources without even subscribing to Twitter (see *asterisk).
1. Find Jobs by Industry and Sector*
Workhound has a directory of jobs posted on Twitter by feed. You can follow jobs through this website, or subscribe to individual feeds on Twitter:
2. Help A Friend, Help Yourself: Each one, Reach One Campaign
Job Angels is a campaign where you recommend one person on Twitter that needs job help (you can also ask a friend or member of this MeetUp to nominate you). For more information, check out the Job Angels website.
To find Job Angels on Twitter
3. Aggregated Career Advice*
March Career Madness is a round-up of career advice from over 25 career coaches, recruiters and thought leaders. I initiated this event in March 2009 but we will continue long after the NCAA tournament is over.
To see "tip stream":
Twitter Search Engine
Need advice on how to get started with Twitter? See my earlier post on March Career Madness for a basic tutorial and resources on how to begin.