Economists have long considered government spending, especially on infrastructure, to be an effective tool for revitalizing a stagnating economy.

VOA: standard.2009.10.16

In the non-profit sector especially, knowing what one is getting out of a tool, tactic or strategy can be especially complex.

FORBES: The Secret to Measuring Social Media: An Interview with Beth Kanter

Still, for those concerned with covering all their bases, EmergencyLink may be a useful tool, especially because it's free.

WSJ: A Free Service to Store Medical Data in Case of an Emergency

The findings show that Facebook could be used as a reliable job-screening tool, he says, especially since candidates would have a hard time "faking" their personalities in front of their friends.

WSJ: Facebook Profiles Found to Predict Job Performance