Any patterns included in the tutorials are for non commercial use. You can make them for yourself or to give to others as gifts, but please do not sell the pattern or the finished product. However, you are welcome to create your own design and use the techniques described in the tutorials to create an item for commercial use, as long as the design is not a copy.
If you would like to include any of my tutorials your own blog that will be fine, but please link the tutorial back to my post. Thanks!
Good Luck, I hope you enjoy making these projects and that they inspire you to try more!