I definitely think you should have a word:
"Excuse me, (insert boss name here), but we need to talk. My current workload is seriously reducing the amount of time I can spend on a certain Internet forum frequented by a random bunch of freaks with a common affection for a small Mediterranean island.
I think you need to understand that socializing with these people is important for my mental health and, therefore, productivity level. I'm going to need regular 15 minute breaks throughout the day. Oh, and the second half of June off to hit the opening parties. Thanks for your understanding."