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here's your Daily Crunch. Coming up, Amazon launches same day delivery for retail stores,

Twitter's latest test, and Pinterest debuts a new app.

Amazon announced today that Prime Members in some U.S. metro areas can now get same-day delivery from select retail stores.

At launch, members in or around Atlanta, Chicago,

Dallas, Las Vegas, Miami, Phoenix, Scottsdale, Seattle, and Washington, D.C.

Can shop from Pac Sun, GNC, Super Dry, and D.C., can shop from Pac Sun, GNC, super dry and diesel on the Amazon app and

Amazon.com and receive their items in the same day. Members will also be able to purchase items

from Surla Table and 100% pure in the coming months.

The company plans to expand the offering to additional retailers and cities around the U.S. in the future.

Amazon notes that some stores also offer the option to buy items online and pick them up in store.

The service is free for U.S. Prime members who spend $25 or more on qualifying items and $2.99 for members who spend below $25.

Up next in its latest effort to boost users and specifically app usage, Twitter is testing out a new way to get people engaged.

Those who are new to the social network will be able to give the app a test drive

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