Works Progress Administration (later "Works Projects Administration"), a U.S. government employment agency (1935–1943)
World Poker Association, the international governing body of tournament poker worldwide
World Pool-Billiard Association, the international governing body of pocket billiard sports
Windows Product Activation, a software licensing strategy in Microsoft Windows XP
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WPA implements the majority of the IEEE 802.11i standard, and was intended as an intermediate measure to take the place of WEP while 802.11i was prepared.
WPA was created by The Wi-Fi Alliance, an industry trade group, which owns the trademark to the Wi-Fi name and certifies devices that carry that name.
WPA is designed for use with an 802.1X authentication server, which distributes different keys to each user; however, it can also be used in a less secure "pre-shared key" (PSK) mode, where every user is given the same passphrase.
WPA projects primarily (90%) employed unskilled blue-collar workers in construction projects across the nation, but also employed some white-collar artists, musicians, and writers on smaller-scale projects, and even ran a circus.
It is to the eternal credit of the administrative officers of the WPA that discrimination on various projects because of race has been kept to a minimum and that in almost every community Negroes have been given a chance to participate in the work program.
Some who experienced work in the WPA have been known to refer to it as "We Poke Along," "We Piddle Along" or "We Putter Around." This is a reference to WPA projects that sometimes slowed to a crawl, because foremen had no incentive to speed up workers.