Accurately measuring online giving on a national level is clearly maddeningly difficult. However, this is the seventh annual estimate calculated by Hart, apparently based on “the review of hundreds of first hand reports of giving he receives from charities and review of third-party research projects completed during the time period” . So, assuming the methodology is consistent, this should at least provide a good basis for observing the overall growth trend.
By comparison, according to the Giving USA Foundation’s latest figures just released this Monday, overall US charitable giving in 2007 is estimated at $306.39 billion – up just 3.9% on 2006.
Looking beyond the US, Hart believes the US figures represent slightly more than 50% of world-wide online giving, which he estimates to have now passed $20 billion.