If you’re interested in small group studies on Christian interaction with issues of social justice, fair trade and aid/development work the following links may be useful to you.
Christian Aid has a whole lot of useful material on their web site at http://www.christian-aid.org.uk including:
Christian Aid campaigns
Act Justly booklet
Also check out
Global Rich List
Sojourners: A World At Odds – Conscience in a Time of Terror
Sojourners: Table Talk