Geoff Livingston co-founded Zoetica to focus on cause-related work, and released an award-winning book on new media Now is Gone in 2007. Throughout the non-profit world, organizations struggle with social media’s impact on the volunteer and donor cycle.

Skype group video calling is here. The company has just released a new version of their desktop software that supports five-way video calls. At launch, this beta version of Skype is free to download and use for PC users.

Social media’s power to spread the word is well known, as is its ability to help fuel charitable causes. The examples are many, including TweetsGiving , #BlameDrewsCancer , the Social Media Smackdown , Twestival and the Mashable Summer of Social Good .