Oh what a wonderful plate of drama Canonical set out when they tied their desktop UI to Amazon searches. The drama that's unfolded from Unity having ties to Amazon.com pulling in online sales pitch searches with local PC searches is amazing. That being said someone made a website to show you how to remove those searches from Ubuntu.
Fix Ubuntu Site
Canonical didn't like what they saw and sent in the lawyers. Well the EFF jumped in and here's the response that were sent back.
My how the mighty Ubuntu has fallen.