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.
The nine-digit ZIP code is required for all classes of mail. The ALNAV message is available at http://www.public.navy.mil/bupers-npc/reference/messages/Documents/ALNAVS/ALN2013/ALN13047.txt. ZIP codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP is an acronym for Zone Improvement Plan. All U.S. addresses have a standard five-digit ZIP code that informs the postal service of the area of the country and the post office where mail is received. In 1983, the USPS added four digits to ZIP codes to help further pinpoint a recipient's location.