Lake Mohave water levels, using an Internet data source.

Lake Havasu water levels, using an Internet data source.

Cliffs of the Sierra Ponce and Rio Grande, Big Bend National Park, Texas (© Tim Fitzharris/Minden Pictures)

Misool Island, one of the four major islands in the Raja Ampat Islands in West Papua, Indonesia (© Elsy Saldek/Getty Images)

nikitonsky: Hiding your name from yourself, in case you don’t know it?

Poppies in bloom, Moravia, Czech Republic (© rusm/Getty Images)

Sweetheart Abbey, Dumfries and Galloway, Scotland (© Westend61/Getty Images)

Long-beaked common dolphin pod and diving Cape gannets hunting sardines off the Eastern Cape, South Africa (© Pete Oxford/Minden Pictures)

The Bergamot project is a collaboration between Mozilla, University of Edinburgh, Charles University in Prague, the University of Sheffield, and University of Tartu with funding from the European Union’s Horizon 2020 research and innovation …

Websites have many reasons to notify their users of time-sensitive or high-priority events, even if the user does not currently have the site open.