Unions & Associations

Actors’ Equity Association: www.actorsequity.org   
Actors’ Equity (Great Britain): http://www.equity.org.uk/home/
American Guild of Musical Artists: www.musicalartists.org  
IATSE: www.iatse-intl.org
SMNetwork: www.smnetwork.org
Stage Managers Association: www.stagemanagers.org
Stage Directors and Choreographers Society: www.sdcweb.org
Theatre Communications Group: www.tcg.org
United States Institute for Theatre Technology: www.usitt.org

Arts News

American Theatre: www.americantheatre.org
ArtsJournal: www.artsjournal.com
Broadway Musical Home: http://www.broadwaymusicalhome.com/
Broadway News: www.broadwaynews.com
Playbill: http://www.playbill.com/

Theatre Online

BroadwayHD: https://www.broadwayhd.com/
Broadway On Demand: www.broadwayondemand.com
Broadway Podcast Network: www.broadwaypodcastnetwork.com
Digital Theatre: http://www.digitaltheatre.com/
Hold Please! (podcast): https://www.holdpleasepodcast.com/
Masterworks Broadway: www.masterworksbroadway.com
Triton Gallery: www.broadwayposters.com

Digital Tools

Blocker App: https://itunes.apple.com/us/app/id942045331
Callboard & Co. www.callboard.co 
Cuelist App: www.thecuelist.com
Equity Timer App: https://itunes.apple.com/us/app/sm-equity-timer/id596857790?mt=8
Megawatch Calculator: http://www.willpickens.com/megawatch_index.html
Multitrack Stopwatch: http://download.cnet.com/archive/3000-2350_4-10146154.html
StageWrite App: https://itunes.apple.com/us/app/stagewrite-for-ipad/id504168392?mt=8
Thank You 5: http://www.thankyou5.com/index.cgi
Virtual Callboard: http://www.virtualcallboard.com/

Document Design Resources

A Basic Guide to Website Builders: https://tech.co/website-builders/best-website-builders-beginners
Creative Bloq: www.creativebloq.com
Fonts in Use: https://fontsinuse.com
Web Design for Beginners: https://webflow.com/blog/web-design-for-beginners

Just for Fun

Calling a Musical on Live TV: https://www.youtube.com/watch?v=DP2QOmN57iU
Coffee! http://time.com/3860685/research-science-psychology-coffee/
Old Prompt Books at the Victoria & Albert Museum: http://www.vam.ac.uk/content/articles/d/doyly-carte-prompt-books/
Royal Opera House Opera Machine:  http://www.roh.org.uk/interactives/opera-machine
Q2Q Comics: https://q2qcomics.com/