need to know right in the comfort of your own home because a new phenomenon is taking the internet by storm. >> great, great stuff. >> viral videos, more informative than absurd. >> you might watch this video and learn a little something. >> they're how-to videos, and they can teach you how to do just about anything. >> how to carve a pumpkin. >> they're instructional and educational videos that can show you how to do just about everything. you can find a video how to treat a mosquito bite or where to go on your next vacation. >> from tiling bathroom floors to curing gum disease, there are thousands of how-to videos to choose from. gregory believes how-to videos are so popular because they make things simple for people to learn. >> step one. >> text articles are great for learning how to do certain things, but a lot of people learn visually, and videos sometimes explain you things you wouldn't be able to get from reading an article.