Delaware allows online charity raffles. Please see the following for more information:
10-100-102 Del. Code Regs
Department of State, Division of Professional Regulation. http://dpr.delaware.gov/boards/gaming/raffle.shtml
Specific Issues to be aware of:
If you are a qualified charitable organization and your raffle ticket price is $5 or less and the total retail cash value of prizes to be awarded is less than $5,000, you are not required to obtain a raffle permit from the Board of Charitable Gaming.