Photoshop Elements contains a special full screen viewing mode which can be used for adding keyword tags to photos and images to albums.

One of the real strengths of the Organizer component of Photoshop Elements 8.0 is the many ways that photos can be viewed. The Full Screen mode has been present in Elements for a few versions but in the latest incarnation, the feature has been revamped to include the ability to display video, and two extra panes – one for adding Albums and Keywords, the Quick Organize pane, and a second, the Quick Edit pane, for applying single click enhancements.
These changes, along with the simple to use but highly effective slide show options, make the Full View workspace a great first point of call when reviewing, editing and organizing your photos.
Organizer: Display > View, Edit, Organize Photos in Full Screen
The Windows’ View, Edit, Organize Photos in Full Screen option provides an instant slide show of the files that you have currently displayed in the Organizer. Seeing the photos full size on your machine is a good way to edit the shots you want to keep from those that should be placed in the ‘I will remember not to do that next time’ bin. The feature now includes floating Quick Fix and Quick Organize panes. The VCR-like controls at the base allows you to play, pause or advance to the next or last photos.
It is possible to view the contents of your catalogue in a special Full View display mode by selecting the View, Edit, Organize in Full Screen entry from the Display menu. Alternatively, you can also hit F11 to jump to the Full View mode. As well as showing all the photos currently in the browser you can also multi-select the images to include in the review session before starting the feature, or even limit those pictures displayed to a particular album.

Full View tagging

When selecting several images and then choosing the View, Edit, Organize in Full Screen entry your photos will be displayed as thumbnails in a queue on the right side of the screen, the selected picture will be displayed in the centre of the screen and the two palettes, Quick Fix and Quick Organize, are located on the left. The palettes can be set to auto reveal, that is, pop-out from the side of the screen when you move your mouse cursor over them, or you can set them to be permanently displayed by clicking the small pin icon on the right hand edge of the window.
The Quick Organize palette provides a fast way to add existing or new Keyword Tags to the photo which is currently being displayed full screen.

Tagging in Full Screen mode workflow:

Start by selecting the images that you want to display from the Organizer in Full Screen mode and then hit the F11 key.
Now select a photo to display full screen from those queued on the right of the screen.
Move the mouse over the Quick Organize palette on the left of the window and click on the pin icon to fix the palette in view. Just click onto one of the keywords displayed in the palette to add it to the picture.
To add a new Keyword Tag, type it into the text box and then click the green ‘+’ icon to the right.
Albums in Full Screen mode
So as well as it being possible to tag your photos while reviewing them in Full Screen mode, it is also possible to add images to Albums with other options found in the Quick Organize palette. Once your pictures are displayed in the Full Screen, adding them to an existing album is a simple matter of clicking onto the Album entry in the palette to add the picture.
It is important to note that this feature relies on the albums already being created before entering the Full View mode. In this way, it is different to the tagging options found here as Keyword Tags can be both created, and applied, in the Full View mode.

Adding photos to Albums in Full View:

Select the photos to be displayed in the main Organizer space and then hit the F11 key or choose the View, Edit, Organize in Full View option from the Display menu.
Add the displayed photo to an Album by clicking on the Album entry in the Quick Organize palette.
Use the left and right arrows to move between queued photos, adding images to Albums as you go.