NAPS2 - NAPS2 is a document scanning application with a focus on simplicity and ease of use.
Simple Scan - Project information. Part of: The Gnome Project. Maintainer: Simple Scan Development Team. Driver: Simple Scan Development Team. Licence: GNU GPL v3.
VueScan - Third-party software for film scanners and flatbed scanners.
PaperScan - PaperScan Scanner Software is a powerful TWAIN & WIA scanning application centered on one idea: making document acquisition an unparalleled easy task for anyone.
Scanitto Pro - Scanitto Pro is a simple and easy to use scanned imaging software. You can easily save the scanned images from your imaging device through this program to varying document styles and file types. Read more about Scanitto Pro.
XSane - A good proposal for SANE-2 has been written.