Ziff Davis’ enterprise media group (ZDE), which in June was sold to PE firm Insight Venture Partners for about $160 million, has now merged with Developer Shed, an IT developer-focused network of website, in a roll up deal. This merger includes Developer Shed’s recent acquisitions of websites: Tutorialized, a site for user-generated “how to” videos for developers, and Codewalkers, which provides user-generated scripts for developers, the companies said. Financial details were not disclosed.

Also, ZDE’s buyout by Insight is also complete now. Its brands now include eWEEK, Baseline, and CIO Insight. The two merged entities will NOT change to a new non-Ziff Davis name, but will be called Ziff Davis Enterprise. With ZDNet (part of CNET) adding to the name confusion, I had hoped that they would do it, but looks like they won’t.

Updated: Meanwhile, the parent company Ziff Davis has replaced its longtime CEO Robert Callahan. Jason Young, currently President of ZD’s Consumer/Small Business Group, will assume the CEO. Callahan had been at the helm since 2001 and will continue his role as Chairman. Young has spent the majority of his career at Ziff Davis, originally joining the company in 1990..he left briefly for a stint at TheStreet.com in late 90s. More here in the release.

• Ziff Davis To Sell Enterprise Division To Insight Venture Partners, For About $160 Million