Finding images (with help from Felix Jung)

It doesn't hurt to start and draw inspiration from Google image search. This is where your mad search string skills will come into play.

If the presentation is going to be made available to a broad audience, securing permission from the original image owner, if the image does not have a creative commons license, is important.
Remember the golden rule!

For alternate resources, the following list comes from Felix Jung's guide
(http://avoision.com/pechakucha):

Flickr: You can perform an “advanced” search on Flickr and specify only images that have a Creative Commons license (image attribution is often one of the requirements).

Image*After: A large, free collection of photos. Images can be downloaded and used for both personal and commercial purposes.

Stockvault: A photo sharing site with images from designers, photographers and students. Commercial use is NOT allowed, but personal use or internal presentations is acceptable.

morgueFile: The site name refers to old files/notes kept by criminal investigators and newspaper reporters, for use as quick references. High-res images are available for personal and commercial use, so long as the image is altered in some way.

Pow!: A large collection/list of stock photography resources.

iStockphoto: Royalty-free images, available for purchase based on a “credit” system. Great quality, but you need to pay for the images (worth it though).

Gimmestock: High quality images for $1 each.