O'Reilly and CMP Exercise Trademark on 'Web 2.0'

theodp writes "On May 16, the USPTO notified CMP Media, which co-presents the Web 2.0 Conference with O'Reilly, that its trademark for Web 2.0 was entitled to be registered. Eight days later, CMP sicced its lawyers on not-for-profit IT@Cork, taking the networking organization to task for not only using the term Web 2.0 for its free conference, but also for linking to a What is Web 2.0 article penned by Tim O'Reilly." It should be noted that their trademark only applies to the titles of industry events (CMP is a show organizer).