Since Ubuntu 12.10 (Quantal Quetzal), Unity Dash started to show shopping suggestions from Amazon as well as online search results, which are tailored to your searches. This feature ticks off many Ubuntu users.
If you want to disable Amazon search results on Ubuntu Dash, go to "System Settings" --> "Privacy" (or "Security & Privacy"). Then turn off "Include online search results" under "Search" tab. This will also disable showing other online search results on Ubuntu Dash.
Another way to remove Amazon shopping suggestions from Ubuntu Dash is to remove "Unity Shopping Lens" as follows. This works for Ubuntu 12.10, Ubuntu 13.04.
After removal, you need to log out, and log back in to finalize deactivation.
Subscribe to Ask Xmodulo
Do you want to receive Linux related questions & answers published at Ask Xmodulo? Enter your email address below, and we will deliver our Linux Q&A straight to your email box, for free. Delivery powered by Google Feedburner.