There are several ways to type in Hindi. Some of these include:

• Using Google Transliteration: http://www.google.com/transliterate
• Using Google Transliteration Bookmarklet:
  http://t13n.googlecode.com/svn/trunk/blet/docs/help_hi.html
• Using an IME. Common IME’s include those from Google, Microsoft Bhasha and Baraha. These require a download and install of client software.