The following useful list of sites for images is from Step 6 of Edublog’s Teacher Challenge:
Creative Commons Search – Search many sites at once
StockVault.net – Free images from photographers around the world
Kozzi.com – One free photo per day
FindIcons.com – Huge resource for avatars or small images
Flickr Advanced Search – Use advanced search filters to show only CC licensed images
Morguefile – Free stock photos (Thanks Sue Lyon-Jones for link in comments!)
Open Clipart Libary – Public domain clipart (Thanks Sue Lyon-Jones for link in comments!)
The following are paid services I appreciate:
Deposit Photos — I registered and bought a $100 subscription for pay-per-use, and found it helped my staff on those days when we were about to publish but hadn’t quite gotten our graphics together for the Double Truck idea.
Tribune News Service — Formerly MCT Campus, this service provides images, stories, games. Check the current terms, but when I registered years ago, it was a one-time $100 fee (forever).