In recent days, Causes has left MySpace and IdeaBlob has shutdown. To some, these events were unimportant. In reaction to the Causes announcement, Economist bureau chief Matthew Bishop tweeted "Who knew it was on MySpace?" to which New York Times reporter Stephanie Strom tweeted back "No kidding."   But to many people active in online social action communities, these events had deeper meaning.

Visit the Tactical Philanthropy blog to read today's guest post from Amy Sample Ward, NetSquared's Global Community Development Manager.