While trying out the features and learning HTML5, I had collected a list of tutorials and resources that might come handy for web developers. I hope this list will help you in learning and mastering HTML5 quickly.
Apart from all the above tutorials, here are some of the websites having very good content for understanding HTML5 and CSS3.
61. HTML5 Gallery
62. When can I use…
63. Dive Into HTML5
64. HTML5 Doctor
65. HTML Reference
If you have come across some other HTML5 good tutorials, feel free to add them in the comments section.