For nearly two years, Open Sources, written by Savio Rodrigues and Zack Urlocker, has been one of InfoWorld's most popular blogs. Now we're opening it up -- to contributions from you At InfoWorld, we like to see ourselves as at least honorary members of the open source community. After all, we host the annual Open Source Business Conference, which brings together business leaders, technologists, and lawyers to collaborate on strategies and business models. And every summer, the InfoWorld Test Center hands out the Best of Open Source Software awards, better known as the Bossies, which in 2008 named 60 products in eight categories. And all year round, of course, we bring you Open Sources, a popular and engaging InfoWorld blog all about open source issues written by Savio Rodrigues and Zack Urlocker. Followers of that blog know that Savio and Zack are no Click and Clack; they’re two completely different personalities with their own unique viewpoints. [ Our Open Sources blog has opened wide! Along with the usual great work by Savio Rodrigues and Zack Urlocker, guests bloggers are invited to post as well. Check out the first guest post by Mark de Visser, CEO of Sonatype. ] So, we wondered, why limit Open Sources to two points of view? In true open source tradition, and with the enthusiastic support of Savio and Zack, we’ve decided to open up Open Sources to the entire community. Our first guest post is by Mark de Visser, CEO of Sonatype, whose flagship product is Nexus, a Maven repository manager. Mark tests a formula for open source software pricing put forward by InfoWorld contributor Dave Rosenberg — and then goes on to argue for pricing transparency among open source vendors.We hope that Mark’s effort will be the first of many guest posts. Have something to say about open source licensing, culture, successes, foibles, business models, or anything else? Then send us a guest post at openresource@infoworld.com. As with any open source project, there will be some gatekeeping — no abuse, no product pitches, no random rambles — just complete thoughts related to open source in a few hundred words. And by all means, continue to post comments, too. But we welcome you to take a crack at a full post in one of InfoWorld’s most-read blogs. Technology Industry