I feel remiss that I haven’t put these links up before, as they are the resources I reach for when I have questions about Tableau Desktop, Server, or any other necessary associated knowledge.
http://tableaulove.tumblr.com/ – Russell Christopher
http://tabcmd.com/ – Michael Kovner
http://blog.databender.net/ – Alan Eldridge, which hosts the ultimate guidebook for making things perform well in Tableau http://blog.databender.net/2015/07/24/designing-efficient-workbooks-the-v9-0-edition/
http://www.alansmitheepresents.org/ – The anonymous and now departed Alan Smithee’s blog continues — search or look in the archives