After few web searches & reading blogs, I have realized that my free wordpress.com account is no good for hosting Unity3D files & displaying in the blog posts.
However, as plan B, I am going to store Unity web deployment on Dropbox (as public link) and refer to it from the blog.
Not elegant but functional for now.
Content is very rough at the moment but below are basic controls.
Left mouse = Orbit, Middle mouse = Pan & Right mouse = Zoom in/out
Left/Right arrow keys = Scroll up and down current row of shaders