Amazon is 'pausing' its own shipping service that it was beta-testing in the US — read the memo it just sent sellers (AMZN)

· Amazon told sellers on Tuesday that it will pause in June its in-house shipping service that was being beta tested in a few US cities.
· It didn't provide a clear explanation for the suspension, but some experts and sellers believe it's due to the lack of profitability in its service.
· Amazon launched its own shipping...