keep posted

“If you are going to New York, you might say, ‘Keep me posted,’ but if you are on a beach in Australia, you might not want to keep posted as much,” Kessler said.

From Washington Post ● Mar. 28, 2019

And it is my purpose to keep posted in the postoffice of every town a roll of honor of all those who join with me.

From Time Magazine Archive

Accordingly the local and federal authorities constantly keep posted on Forest Reserves notices calling attention to the dangers and urging care upon all who use the forests for any purpose whatever.

From The Lake of the Sky Lake Tahoe in the High Sierras of California and Nevada, its History, Indians, Discovery by Frémont, Legendary Lore, Various Namings, Physical Characteristics, Glacial Phenomena, Geology, Single Outlet, Automobile Routes, Historic Towns, Early Mining Excitements, Steamer Ride, Mineral Springs, Mountain and Lake Resorts, Trail and Camping Out Trips, Summer Residences, Fishing, Hunting, Flowers, Birds, Animals, Trees, and Chaparral, with a Full Account of the Tahoe National Forest, the Public Use of the Water of Lake Tahoe and Much Other Interesting Matter by George Wharton James

As a photoplay author, you should subscribe for one of the trade-papers, if for no other reason than to keep posted on the titles of the various subjects released by the different manufacturers.

From Writing the Photoplay by J. Berg (Joseph Berg) Esenwein

They were forgotten the minute the mail was distributed, for of course their papers contained news from all parts, and the boys made it their business to keep posted.

From True To His Colors by Harry Castlemon