http://wesanthals.tripod.com/

The Santhals are amongst the better studied tribal communities in the country. In fact, the first attempt to study Santhali culture was made in colonial times by some Christian missionaries. The Norwegian-born missionary Paul Olaf Bodding wrote the first grammar for the Santhal community in the early 20th century. The community uses a script invented just 80 years ago: the Ol Chiki script developed by Pandit Raghunath Murmu. This and many other facets of the Santhal community are detailed in this website.
It has lively forums discussing Santhal culture, like details of the first feature film made in the Santhali language. You learn about the history of the Santhals, can download the Ol Chiki script free and also read the Santhali newspaper, Disom Khobor .
But there is a downside: the site maintained by the e-group We-santhals has not been updated in almost two years.