Online Mosaic Courses 

Mosaic Arts Online is the brainchild of Tami Macala who had started the Santa Barbara School of  Mosaic Art in 2009. All paid 8 courses on offer at present are managed by expert mosaicists who have years of mosaic-making and teaching experience. For those in India, however, the courses will feel more relevant and a worthwhile investment when we can find materials like glass rods, smalti or wediboards locally. Even if these courses came with the prescribed materials, sourcing smalti or glass rods remains a distant possibility for us in India. And yet, I’m really pleased to see efforts being made to provide mosaic tutorials through web based technologies in a structured way. It’s high time that the art and craft of mosaic-making is seen as an area of learning and pursuit the world over.
http://mosaicartsonline.com/courses

Roman Mosaic Workshops is a website owned by Lawrence Payne and focused on the art of Roman mosaics. He has designed kits that he sells with instructions, written articles on Roman mosaics, provided reference material on ancient mosaics on his site, and he has also designed 3 paid online courses and made them available at the link below. These courses on the rules, patterns and methods of creating mosaics follow a structured approach to learn and practice the art of laying stone or ceramic tesserae along the lines of Roman mosaics.
https://yescourse.com/~/roman-mosaic-workshops/#!

Kasia Polkowska offers some of the most helpful video tutorials on YouTube on cutting of stained glass. On her online course website on the link below, Kasia offers a paid course on creating a stained glass flower mosaic. She gives a choice of 12 flower templates that one can download once registered for the class. Another online course on her beautiful stained glass owls is under preparation that would offer 18 templates of owl patterns to choose from to mosaic.
http://www.kasiamosaicsclasses.com/course/online-flower-class/

Brett Campbell Mosaics has a wonderfully organised website showing his mosaics segregated in different categories, selling designs and patterns to buy online as also providing 2 paid courses to attend online from the link below.
http://www.mosaics.com.au/learn-mosaic/mosaic-classes-online/

Sharras Mosaic Secrets offers 2 online mosaic courses. I have known of Sharra Frank as a bead mosaic artist but I see from her site that she does a lot of beautiful glass mosaic work as well.
http://sharrasmosaicsecrets.com/courses

I’m sure this is just the beginning, and increasingly learners all over would have many more choices to get educated online on mosaic-making by known artists of the world.

Online Learning Resources 

As online search and reading come easy to me, I’ve depended on them regularly for varied learning. In the area of mosaic based orientation, I’ve found these websites and blogs to be wonderful resources, and I recommend them highly for beginners to read, reread and use the shared ideas for their mosaic experiments. All the tutorials and advice are made available free of cost here so when combined with a good book, a helpful online group and regular hands-on practice, they would amply support a mosaic learner’s quest to gaining confidence in the art of mosaic-making.

The Mosaic Store
This Australia based mosaic supplies store website is a wonderful resource for learning to mosaic. The website’s blog carries How-to project tutorials, tips and primers on tools that all beginners to mid-level mosaicists would find immensely useful.
http://www.themosaicstore.com.au/blogs/news

The Mosaic Supply Store
This US based mosaic supply store website is an ocean of ideas, primers and clarifications on all matters mosaics. Its owner Joe Moorman mentions this as his site’s mission statement that resonates with me entirely:

One of our most important goals is to promote contemporary mosaic as a fine art and encourage ordinary people to make original mosaic art in their own style. 

The FAQ itself is an exhaustive resource and must be referred to by all levels of mosaic practitioners.
https://blog.mosaicartsupply.com
https://mosaicartsupply.com/frequently-asked-questions/

I-C-Mosaics
The site owner Lou Ann Weeks runs an online mosaic supply store and writes this useful blog that covers the basics of mosaic-making. Her videos and posts promote her recommended mosaic consumables but one can still learn much about the general art and technique of making mosaics from her site.
http://i-c-mosaics.com/blog/articles.html#.WL704fmGOUm

Glass Campus
Dennis Brady started building this resource on glass fusing, cutting, selling and more when he saw that he had to work so hard to find the right information on techniques or tools. He built this website to share tutorials to promote free education to all. Most tutorials are focused on stained glass based techniques but a mosaic learner would find a lot of material of interest too.
http://glasscampus.com/tutorials.htm

Helen Miles Mosaics
There are a couple of blogs by mosaicists that I follow with interest. This one tops that list. Do read through the blog from its oldest to the newest post and enjoy Helen’s humour as also the knowledge she shares through her posts.
http://helenmilesmosaics.org

Let me know if I’ve missed any helpful mosaic learning resources that must be included in this post.