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The recent radical redesign of the Twitter homepage integrated media like photos and video into the sidebar of every user's page, and today the company announced that it has partnered with an outside organization to launch the first widget that's usable - and sharable - from inside Twitter. Micro-lending group Kiva has built a widget that lets Twitter users learn about and track Kiva loans all around the world.

Could this be the start of something more? It's not hard to imagine widgets in the Twitter sidebar from other services, like presentation decks from SlideShare or PDFs from Scribd, for example.

A while ago, I wrote a rather condemning post on how most "social media for social good" efforts were heavy on social media activities but came up short on actual social good.

Still, there are organizations such as Kiva, The Extraordinaires or SocialVibe and many others that do turn user microactions and technology to affect change and do good in very tangible ways. Those are just three of the tech nonprofit or philanthropic organizations I can think of at the moment, but we at RWW would love to know more. Tell us in the comment what your favorite tech nonprofit is and why.

It's been a long and winding road for serial volunteer and social media philanthropist Sloane Berrent.

Since her unplanned departure from an L.A.-based startup in 2008, Berrent has traveled through eight countries, documenting and publicizing the struggles of those in developing areas through her blog posts, tweets, images, videos, and her own presence at events at home and abroad. From post-Katrina New Orleans to a trash dump in Manila to a monastery in Burma, read on for her story of trying to achieve social good through social media.

It's been a long and winding road for serial volunteer and social media philanthropist Sloane Berrent.

Since her unplanned departure from an L.A.-based startup in 2008, Berrent has traveled through eight countries, documenting and publicizing the struggles of those in developing areas through her blog posts, tweets, images, videos, and her own presence at events at home and abroad. From post-Katrina New Orleans to a trash dump in Manila to a monastery in Burma, read on for her story of trying to achieve social good through social media.

After a summer of hard work, Facebook's 24 fbFund REV incubator companies presented their products to a room full of investors, entrepreneurs and journalists. Created by Accel Partners and Founders Fund, the fbFund REV program is meant to foster innovation and test the boundaries of app development on the Facebook platform. The groups have certainly come a long way from concept to creation, below are just a few of our favorites:

Kiva.org is the world's first person-to-person lending web site that helps empower entrepreneurs in the developing world by connecting them with others who lend them small amounts of money called "micro-payments." Founded in 2005, the site now connects lenders in 70+ countries with business owners in 43 developing countries and works with 89 microfinance partners. Now Kiva is tapping into the power of Facebook to attract new members to their cause.