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About ScreenCastsONLINE

The team behind the scenes here at ScreenCastsONLINE

ScreenCastsONLINE was formed in 2005 and has grown to be a valuable resource for many thousands of satisfied members. Widely acknowledged as one of the most successful and well respected online Mac & iOS video tutorial services, SCO provides top quality video tutorials to Apple Mac and iOS users.

ScreenCastsONLINE has a large and comprehensive library of video tutorials, covering a wide range of topics. These include applications for macOS, iOS, and iPadOS, as well as the very best in third-party software and services.


Meet the wonderful presenters behind our weekly tutorials:

Don McAllister

Founder & Presenter

After establishing ScreenCastsONLINE as a hobby podcast in 2005, Don gave up his day job in Corporate IT in March of 2006 and became one of the first full-time podcasters to introduce one of the first paid-for premium subscription-based podcast services.

Not forgetting his podcast roots, Don was also a regular pundit on many Mac-related podcasts including MacBreak Weekly, British Tech Mac and the Mac & Forth. Don has also been a regular guest speaker at Macworld/iWorld, Blogworld, New Media Expo, Macstock and on the Mac Mania cruises.

Allison Sheridan


Allison Sheridan is the host of the NosillaCast Apple Podcast — a technology geek podcast with an EVER so slight Macintosh bias — which has been running uninterrupted since 2005! Allison produces the NosillaCast weekly as an audio podcast and an extensive blog at podfeet.com, and she also broadcasts the creation of the show live on video.

She creates the Chit Chat Across the Pond Lite podcast which is a conversation show with interesting people in tech. She and Bart Busschots co-create the Programming by Stealth podcast.

You may also have seen or heard Allison on Tech News Today and MacBreak Weekly on the TWiT Network, the Daily Tech News Show, the SMR Podcast, Let’s Talk Photography and Let’s Talk Apple, the Mac Roundtable, Mac Geek Gab, Cordkillers, Tech’s Message and The Productive Woman Podcast.

Todd Olthoff


Todd Olthoff is a Mac enthusiast who loves to share his passion for all things Apple by passing along what he has learned to others, especially through screencasting. He started his own YouTube channel in 2011 where he produces screencasts on various topics.

He loves new technology and shares his experiences with everything from software to hardware as well as home automation through his videos and blog posts over at his website. Todd has worked on a number of video projects for various software vendors and was a guest on Mac Power Users.

Lee Garrett


Lee is a freelance Project Manager, IT Consultant and Productivity Coach based in the southeast of England. With a fresh start-up business, a wife and three daughters to take care of, shifting focus between these important elements of his life is a constant battle, but one that he is winning.

Mike Schmitz


Mike is an Apple fanboy, coffee snob, and productivity junkie who creates content for Asian Efficiency where he teaches people how to be more productive. He is also a contributing writer for The Sweet Setup, a site dedicated to reviewing and recommending the very best Mac and iOS apps.

He lives in NE Wisconsin with his wife and 4 crazy boys and is the author of Thou Shalt Hustle. He also co-hosts The Productivity Show and Bookworm podcasts.

Rosemary Orchard


Rosemary Orchard is the co-host of the Automators and Nested Folders podcasts and loves all things Apple, from hardware to software, and even the code. She seeks out to understand how everything works so she can explain it to her friends and family.

Rose is based in the southwest of the UK, she spends a lot of her time getting geeky with automation or productivity tools, and beta testing apps. When she's not programming for work or posting on her website, she can be found co-hosting iOS Today with Mikah Sargent.

Judy Lunn


Judy is a lifelong learner who loves to share what she has learned. Through workshops, classrooms, and one-on-one interactions, she has helped over 4,000 people overcome their fear of technology and harness the productive and creative power of their devices. She looks forward to sharing her experiences and lessons learned with the ScreenCastsONLINE community.

Judy is also a singer, guitarist, and a "singing DJ." She recorded a tribute to her musical hero with his band in Nashville. It is called Songs That Speak To Me - Judy Lunn Sings A Tribute To John Denver.

She lives in beautiful Austin, Texas.

Darcy Hegarty


Darcy, better known by his handle ‘sensible’, worked for Apple as a hardware repair technician and trainer for 9 years. He is originally from Melbourne but has lived and worked for many years in both Canada and the UK.

He has now transitioned into Twitch streaming and creating online content for ScreenCastsOnline.

Post Production Team

ScreenCastsONLINE also has a stellar team of digital assistants who help edit, publish, and distribute our weekly tutorials, newsletter, and monthly magazine.

J.F. Brissette

Supervising Editor

Rob Workman

Post Production & Magazine Assembly

Mark Kelly

Production Assistant & Help desk

Simon Little

Production Assistant

Magazine Contributors

The ScreenCastsONLINE Monthly magazine contains the previous month's video tutorials as well as articles, hints and tips, plus reviews from our illustrious bunch of contributors.

Allison Sheridan


Wally Cherwinski


Wendy Cherwinski


David Sparks


Mike Schmitz


Frank Petrie