For some outside sources

Some reviews:

http://search.barnesandnoble.com/We-Beat-the-Street/Sampson-Davis/e/9780142406274
http://youngadultbookreviews.com/2009/05/12/we-beat-the-street-by-the-three-doctors/

Other Websites:

www.threedoctors.com
www.sharondraper.com
www.fantasticfiction.co.uk