Goo.gl has entered the URL Shortener arena in a big way offering QR codes and click tracking. If you are tracking your QR codes – your certainly should track all of your codes for your marketing campaigns – make sure to read Danny Sullivan’s post at SearchEngineLand.com.
To find the right URL shortener and click tracker for your codes, you need to understand some of the finer points of their differences. Goo.gl offers instant QR codes and click tracking. Bit.ly offers custom shortened URLs and domains along with click tracking. Twitter‘s announced t.co shortner is really just a wrapper that Twitter says will help with advertising, tracking and Safety.