In early 2016, some users reported having received e-mails from Academia.edu where they were asked if they would be interested in paying a fee to have their papers recommended by the website's editors. This led some users to start a campaign encouraging users to cancel their Academia.edu accounts.
The main difference between zip code and postal code is that zip code is used as a code in United States while postal code is used in rest of the world. ZIP Code. ZIP code is postal code system that is being used by U.S. Postal Service (USPS) since 1963.
ZIP code â A system of 5-digit codes that identifies the individual Post Office or metropolitan area delivery station associated with an address. ZIP+4 is an enhanced code consisting of the 5-digit ZIP Code and four additional digits that identify a specific range of delivery addresses.