A list of Artist Painting Techniques Painting Techniques
A short video that shows the difference between dry brushing and scumbling.
Not technically information on Alla Prima painting, but information on the wet-on-wet technique. The wet-on-wet technique can be used at certain times on a developing work of art, as can the wet-on-dry technique. Alla Prima describes a technique where a painting is done in one sitting.
Although this is supposed to be an example of blending specifically for Painting By Numbers, it isn’t. This is actually a demonstration of Dry Brushing by Melanie B. This next link is an example of true Blending for a PBN canvas.
The Zig-Zag method of blending by Painty Kat.