 Hi everybody, I'm Jen with OpenSource.com and this is our weekly top five for the week of March 11th. At number five this week, when selling a site means selling a community. At the number five and number four spots in our list this week, we have a two-part series by Ricky Inslee. In this first article, she looks at the consideration's own cloud CEO, Frank Carlzecek, had to make when selling his first startup a network of OpenSource community sites. And in the number four spot, Steel Reeling, Source Forge looks to the future. In this second article of the two-part series, Ricky Inslee interviews Logan Abbott, president of Source Forge Media, which is the company that now owns Source Forge and Slash Dot, about their recent past and their plans for the future. At number three, Open Collaboration, CERN's Particles, OwnCloud, and Petabytes. This is the story of OwnCloud's collaboration with the IT team behind the largest particle physics laboratory in the world, the European Research Organization CERN, as well as Australia's Countrywide Network provider for research institutions, ARNET. At number two, OpenSource Math Software competes in the classroom. Creator of SageMath, an OpenSource Mathematics software system, William Stein tells us how teachers can now easily use Python and R in their courses and collaborate in real-time to manage their online courses with the same cutting-edge software used by top mathematicians at the best universities in the world. And finally, at number one, Nine OpenSource Alternatives to Pekasa. Google is shutting the doors on the Pekasa desktop client next week, but Jason Baker tells us there are at least nine and many more, but he tells us about nine of the open-source alternatives out there for your photo-organizing needs. And that's it for the top five this week. Thanks so much for joining me and I'll see you next time.