Cleveland—Penton Media has sold its U.K. operations to members of the business’ management team and other investors, led by Northern Venture Managers and U.K. Managing Director Andy Center. Penton retained a 10% interest in the businesses. The deal does not include Natural Products Expo Europe or Electronic Design Europe magazine, which are managed by Penton executives in the U.S. Penton also said it recently completed the sale of 70% of its 50% interest in Penton Media Germany to Neue Medien Ulm Holdings. Separately, BZ Media, publisher of SD Times and producer of the Eclipse World Conference & Exhibition, announced it has acquired Eclipse-focused properties from Penton Media. BZ Media bought three properties aimed at the open source software developer communities: e-mail newsletter "EclipseSource" and the Web sites EclipseSource.com and EclipseNews.com. Financial terms of the transactions were not disclosed.