This Week on the mediabistro.com Job Board: ThinkGeek, Interval International, TripAdvisor

This week, ThinkGeek is hiring a PR manager, while Interval International needs a director of corporate communications. TripAdvisor is seeking a PR manager, and Sierra Club is on the hunt for an associate press secretary. Get all the details below, and find additional just-posted gigs on mediabistro.com.

For more job listings, go to the Mediabistro job board, and to post a job, visit our employer page. For real-time openings and employment news, follow @MBJobPost.