These are the most popular and come with lots of help. If you get an outdated link, please let us know!
I have found alot of tuturials on youtube.
Inkscape *** One of the best Win/ Mac / Linux
Gimp Been compared to Adobephoto Shop. Win/ Mac / Linux
HeliosPaint is a freeware paint program for creating and editing images Win/ Mac / Linux
Picasa Digital Photo Software from Google Win/ Mac / Linux
PhotoScape for Windows Free Photo Editor
FreeSerifSoftware DrawPlus SE Get the SE edition Win
ImageForge from CursorArts Co. Win
Acorn Mac
Adobe Photoshop Album Starter Edition Win/ Mac
Xee 2.0 for Mac Free Macintosh image viewer.
IrfanView (Windows) image viewer.
XnView is a free image viewer and organizer for Windows, Linux, Solaris, and more.
