More suggestions: if the general goal is to find images to add to articles that don't have any, then there are two obvious places to also look: - On Commons, try looking for an article or category matching the article name - On other Wikipedias, follow the interwiki links. You may end up on Commons anyway.
As an example, I just added an image for [[Tatranska Lomnica]]. But then it turned out there is a *massive* collection of related images on Commons: http://commons.wikimedia.org/wiki/Category:Tatransk%C3%A1_Lomnica
Some convenient way of displaying these images (or at least the count of them) would help.
Steve