Photojournalism is reporting with words and pictures.
When editing photographs, the picture editor looks for DYNAMICS. As a photographer, you should understand that and strive to get these into your images. Note the cutlines with the photographs. Do they add information that would not be known by simply seeing the photo?  That's why we say reporting with words and pictures.

Dynamics  click to see examples

Motion - a blurring effect

Emotion - any of the emotions pictured: anger, sadness, happiness, love, etc.,

Mood - generally done with lighting, texture, smoke, fog, etc.

Action - just as the name suggests, many times combined with motion

Reaction - one person's "reaction" to something or someone else

Interaction - involves several people, usually, and may include touching, etc.

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REACTION
Walter Astrada
Agence France-Presse
"monday screams"

Monday Lawiland, 7 years old, screams as he sees kenyan policeman with a baton approach the door of his home in the Kibera slum of Nairobi 17 January 2008. Hundreds of police who had earlier clashed with supporters of Kenya's opposition leader Raila Odinga at the entrance of the slum moved into the shantytown and did a house to house search for protestors.



MOTION
Daniel Ochoa De Olza
Associated Press
"Highboard Dive"

 China's Jia Hu performs a dive in the men's 10 meter highboard competition during the XIV FINA Diving grand Prix 'Comunidad de Madrid' in Madrid, Saturday, Jan. 19, 2008.

A Picture Story, according to the Life magazine formula

Usually, a photographer's portfolio (Associated Press Managing Editors members) includes news, feature, sports, color, photo illustration, picture story.  In these portfolios, you will see the Life Formula: an opening shot, interaction or reaction photo, closeup (or detail) series/sequence, overview, portrait, midshot and closing shot. The combined photos should tell a story with a beginning, a middle and an end.The story requires many hours, multiple images and a reporter's eye for detail.

Despite photojournalism's being a fiercely competitive field, the Department of Labor expects the employment to increase as fast as average. 

"[A]s advances in telecommunications create new markets and products - electronic newspapers and magazines, for example, which rely heavily on images-the demand for pictures and images is expected to increase."