It used to be that businesses did business and people who wanted to "do good", be ethical, or make a difference to society, became social workers. Here we meet four social enterprises, or ethical entrepreneurs, taking time out to make a difference somewhere. And they’re making a tidy sum in the process. Click here to read the full profiles. First published in 2001. NB: the GoodCorporation, profiled here, was started by Steve Hilton, who is now a key adviser to Conservative leader David Cameron.