Twittercal is A free service which allows us to add events in our Google Calendar Using Twitter Account. How it is Possible. This is Possible By using Twittercal. Just Visit Their Webpage as Given above. Follow the Five Step instruction on the Registration Page. Follow them on Twitter. And we Are Ready To use Twittercal.
Twittercal is your online virtual friend on twitter and for adding events by simply sending direct messages to your new Twitter friend. For More Detailed Information Please Visit their FAQ Page here.