If people are interested, there is a list of vigils sorted by location. Apparently, there are over 1300 vigils planned for this wednesday the 17th.
The website meetwithcindy.org also has a list of different activities people can participate in, including interfaith prayer meetings on Friday the 19th, and a gathering in washington on September 24-26th.
If you wish to know more about the events behind the protests, there is a wikipedia entry on Cindy Sheehan and Cindy has been actively documenting her protest on the website Dailykos. View her dairies at cindysheehan.dailykos.com.
The truth is always a light that sends lies scurrying away.