All this contributed to a growing number of undocumented people living in the United States.

WHITEHOUSE: Building a 21st Century Immigration System

We had people who contributed photography and videography, all of which contributed to this accident investigation.

CNN: Board chairman: Shuttle design safe

Forrester analysts Vanessa Alvarez, Dave Bartoletti, Rachel Dines, Jean-Pierre Garbani, Dave Johnson, Eve Maler, Stephen Mann, Eveline Oehrlich, John Rakowski, James Staten, and Chris Voce all contributed to this analysis.

FORBES: Dell Is On A Quest For Software

He does not appear to--apparently that's not in accord with all the others who contributed to this polling.

NPR: Gene Rizzo's 'Greatest Jazz Piano Players'

Several hundred social science specialists from all over the world have contributed their expertise to this report.

UNESCO: MEDIA SERVICES

All these factors contributed to the tremendous potential and how we harness this potential is key moving forward.

FORBES: Intelligent Investing

The very unlikely nature of this engagement contributed to its success -- because for all our differences, both our common humanity and our shared curiosity were revealed.

WHITEHOUSE: President Obama Holds Town Hall with Chinese Youth

All this concrete ends up lining streams and waterfalls, but it also has contributed to the "heat island" effect in Tokyo.

NPR: Public Works Endanger Japan's Environment

This milestone recalls the many ways sportsmen and women have contributed to conservation of the public lands we all enjoy.

WHITEHOUSE: The White House