Hi,
I'll pass on your request to Digital Camera. As you can imagine, with the extensive back catalogue, putting together a searchable index of articles would be a pretty mammoth task, so it's something that would need some serious consideration first.
In the meantime, perhaps I can help you with your stock request.
There was an article in Digital Camera Issue 83 (February 2009) and also Issue 71 (March 2008).
Most recently there was a feature on Yuri Arcurs who sells stock photos, which can be found here:
http://www.photoradar.com/techniques...otography-tips
Hope that is helpful for now.
Best wishes,
Amy