[url=https://www.cartographersguild.com/showthread.php?t=8086&p=90460&viewfull=1#post90460]Saderan's Google Earth style Maps[/url]

[url=https://www.cartographersguild.com/showthread.php?t=4084&p=46469&viewfull=1#post46469]Atlas Style Maps Tutorial[/url]

[url=https://www.cartographersguild.com/showthread.php?t=10655&p=114729&viewfull=1#post114729]Hand-Drawn Mapping (for the Artistically Challenged)[/url] - Love this.

[url]http://inkarnate.com/[/url]
[url=http://imgur.com/gallery/fIm72]jacristi's Incarnate map making process[/url]

[url=https://www.reddit.com/r/battlemaps/comments/4020zy/creating_your_own_battlemaps_a_simple_tutorial_v2/]Acriaos' battle map tutorial[/url] - applicable for Photoshop and GIMP too. 

[url=http://www.fantasticmaps.com/2015/02/how-to-draw-a-map/]How to Draw Fantasy Maps[/url] - Very pretty, and well made. 
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These are just a few tools that I have on hand I thought worth adding. I have more if anybody wishes me to keep adding to this list.