An easier way to find an artist to research...
Here is a site that feature the work of contemporary artists (and that includes images of the artists' work!)
White Cube, London
This London-based gallery features the work of a number of interesting artists - click on the name to see images of their work.
Once you find an artist you're interested in researching -- let your discussion group leader know! First come first served -- if you pick an artist someone else has already selected, you'll need to pick someone else!