Are you interested in setting up a Hindi blog? This article highlights how the Hindi blogosphere has grown over the years:

Something which changed the status of Hindi usage on the Internet was the arrival of Unicode fonts (such as UTF 7) with transliteration capability.
Websites like quillpad.com and tools like Google Indic Transliteration tools make Hindi writing so easy that everyone who so desires, can write Hindi on the Internet.
Currently there are many Hindi blog aggregators like blogvani, narad, chitthajagat, chittha wishva and Hindi blogs.
There are other websites like chitthacharcha and Google charcha samooh which discuss posts on several blogs giving precise information on what is going on in the Hindi blogosphere.
Some great ways to reach Hindi readers.