Handmade quilts, scrapbooks and fancy cakes can also be high-tech.
Crafters are taking advantage of the growing number of paid online classes and tutorials that teach hobbies and skills that have traditionally been picked up in person—like hand-dyeing yarns, mastering landscape photography and baking artisanal bread.
Two-year-old learning service Craftsy.com is set to announce that it has more than 2 million users. The site, which offers 266 courses, most of them for $15 to $60, has seen traffic rise 79 percent in the past year, according to Compete.com.
There's also CraftDaily.com, which launched in May with a subscription service for crafting lessons. For $20 a month or $200 a year, users get access to 100 video tutorials.
By 2014, the site expects to have more than 200, said Chad Phelps, chief digital officer at F+W Media, CraftDaily's parent company. Even the Museum of Modern Art has delved into online lessons in painting and collage, among other subjects.