The ability to block people on social networks seems like a basic idea, but that's one thing LinkedIn didn't have prior to today. Now, thanks to a new (and aptly named) Member Blocking feature, LinkedIn will start letting you block other members on the site. LinkedIn points out that while having an option to block users may sound quite simple, it wasn't easy to bake into its product. Paul Rockwell, LinkedIn's head of Trust & Safety, cited the need to research different use case scenarios, and coming up with the right interface as some of the reasons why this tool took a while to develop. Member Blocking is currently rolling out to all profiles, and thus it shouldn't be too long before you can go to town on those unwanted connections.