Blogs and additional resources
These are some great blogs and sites on visual analytics and Tableau (in no particular order). This is by no means an exhaustive list of valuable blogs and resources about visualization and Tableau:
The Information Lab blog: http://www.theinformationlab.co.uk/category/blog/
Interworks blog: https://www.interworks.com/blog
DataBlick blog: http://datablick.com/blog/
Perceptual Edge by Stephen Few: https://www.perceptualedge.com/
Vizwiz by Andy Kriebel: http://www.vizwiz.com/
Health Intelligence by Ramon Martinez: http://www.publichealthintelligence.org/
VizPainter by Joshua Milligan: http://vizpainter.com/
Data Blender by Alan Eldridge: https://blog.databender.net
Tableau Picasso by George Gorczynski: http://tableaupicasso.com/
Drawing with Numbers by Jonathan Drummey: http://drawingwithnumbers.artisart.org/
Vizcandy by Kelly Martin: http://www.vizcandy.ca/
Tableau Zen by Mark Jackson: http://ugamarkj.blogspot.ca/
Data Plus Science by Jeffrey Shaffer: https://www.dataplusscience.com/
Data Revelations by Steve Wexler: http://www.datarevelations.com/blog-page
Jewel Loree: http://www.jewelloree.com/
Bora Beran: https://boraberan.wordpress.com/
VizNinja by Paul Banoub: https://vizninja.com/
Data Boss by Tamás Földi: http://databoss.starschema.net/
Paint by Numbers by Peter Gilks: http://paintbynumbersblog.blogspot.ca/
Ryan Sleeper: http://www.ryansleeper.com/content/