Google launched a fine service which transliterates your roman script to hindi script. Your text will be transliterated as you type and hit space bar. So if you want to run a hindi blog, you can easily make it in hindi script. Here is the google transliteration script link.  Now enjoy making more posts in hindi in your blog, or social networking site. When I typed my name there, I was amazed to see, how it became कंकाना भट्टाचार्य