Social networking who's who

Three types of social networking an organisation can implement:

1. Passive search.
2. Boomerang.
3. Marketing networks. 

Passive search your looking for the candidate. People who are happy and productive working for other companies.

Hiring people as a result of connections through LinkedIn.

Boomerangs

Use network to lure back some former employees, or so-called boomerangs.

Boomerangs cost less to train than new hires and they tend to hit the ground running.

Marketing Networks

Forums dedicated to a specific topic. Star rating etc.