Why?

1. Charity is great. Many a Vedic phrase extols contributing to religion and to those less fortunate as a means to get punya and grow spiritually. Many characters like Karna, Paari, Shibi,..... are also known for their giving.

2. Lot of Hindu charities do social work and/or impart religious education.

3. Giving to Hindu charities can also be an effective defensive mechanism. Armed with the huge donations churches in India do a lot of social service and use that as a platform to convert people. Unfortunately few Hindu temples are rich enough to do social service and they are under govt. control anyway. It seems that to counter "conversion" Hindus may want to channelize more of their giving through faith based charities that support growth of religion and/or do social service.

4. If we have an exhaustive list populated by many members we can save it and have available and send to friends and family.