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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.

As well as the weekly ScreenCastsONLINE tutorials, Don is in high demand as a video tutorial creator for many of the top Mac and iOS software vendors including The Omni Group, Boinx Software, Smile Software, Cultured Code, 37 Signals, and many more.

Not forgetting his podcast roots, Don is 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.

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 own experiences with everything from software to hardware and home automation through his videos and blog posts over at his website, toddolthoff.com. Todd has worked on a number of video projects for various software vendors and has made appearances on Mac Power Users.

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.

Lee Garrett


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

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. In between, she tries to understand how everything works so she can explain it to her friends and family. These experiments usually result in a post on her website.

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. If she's not programming at work, she's often found writing at The Sweet Setup or travelling the globe in an effort to see as much of the world as possible.

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


The ScreenCastsONLINE website, and the ScreenCastsONLINE Members iOS and Apple TV Apps have been designed and developed by the marvellous chaps below...

Jamie Peak

Web Designer & Developer

Simon Wolf

Mobile App Developer (Otter Software)

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