Prime shipping and streaming service goes from $79 to $99 a

High shipping costs are probably to blame, increase goes into effect April 17.

Here's why Prime can afford to raise prices - The Verge

2014 Ars Technica

Prime Membership Price Increasing $20 Per Year

launches free music streaming

How to Get Another Year of Prime for $79 - The Digital Reader

2014 Ars Technica

unveils one-hour delivery service Prime Now

raises monthly Prime subscription price from $10.99 to $12.99

At The Nexus

Prime - Wikipedia