I remember chatting with the PC World people just a few months ago. They have a really active community and they wanted a way to bring together different content and provide readers, as they put it, "the freedom to create and share" what they know.
Reading through the community feedback, it looks like they're well on their way. As their community manager put it:
This is one of the best post-launch days I've had on any community.
We applaud PC World for their leadership, innovation and commitment to providing value to their loyal readers.