Goo.gl is Google’s URL shortener, allowing you to turn http://constructionmarketingideas.com/4847/the-frugal-construction-marketer-2/ (the temporary referring link for frugalconstructionmarketing.com) into http://goo.gl/NpmWS.
The service is fast, free, and provides tracking and reporting capacity.
When should you use this service? Well, the obvious situation is when you need to present what would otherwise be an unimaginably long URL in a place where length is not a strength, such as Twitter posts or QR Code boxes.
In case you are wondering, the .gl suffix is Greenland’s.