Pojo - When uploading an image, the picture is shown immediately with an upload progress overlay.
/via Martijn

Pojo - When uploading an image, the picture is shown immediately with an upload progress overlay.

/via Martijn

Flickr - The favicon turns into a live indicator showing the progress of the upload.
/via nWODT_Cobalt

Flickr - The favicon turns into a live indicator showing the progress of the upload.

/via nWODT_Cobalt

Flickr — When uploading files, it shows percentage in the tab, so you can always see the load progress while surfing other sites.
/via  zliba

Flickr — When uploading files, it shows percentage in the tab, so you can always see the load progress while surfing other sites.

/via  zliba

Chrome - After clicking on an active download, the status changes to “Opening in [time remaining]”.
/via John MacAdam

Chrome - After clicking on an active download, the status changes to “Opening in [time remaining]”.

/via John MacAdam

Mac App Store - While downloading a new app, the icon transparency changes according to the progress of the download.
/via Florent Gosselin

Mac App Store - While downloading a new app, the icon transparency changes according to the progress of the download.

/via Florent Gosselin

Mac App Store - The progress bar of installing an app from the Mac App Store changes its dimension separate from the icon, when magnified in the dock.

Mac App Store - The progress bar of installing an app from the Mac App Store changes its dimension separate from the icon, when magnified in the dock.

New ScientistSimple optical illusions can make it seem like the progress bars on your file downloads are moving faster than they actually are. 

Instapaper - Lenght and progress indicator
/via @cameronmoll

Instapaper - Lenght and progress indicator

/via @cameronmoll

Transmit 4 - loading bar indicates both the total transfer and per-file transfer in one progress indicator

/via @simply_creative

Transmit 4 - loading bar indicates both the total transfer and per-file transfer in one progress indicator

/via @simply_creative