Officehours is described as 'Get/give 10 minutes of free 1-on-1 advice'. There are six alternatives to Officehours for Online / Web-based, Skype, Self-Hosted solutions and Wordpress. The best alternative is Creativelive, which is free. Other great apps like Officehours are Minutizer (Paid), Helpouts (Paid), Cafetalk (Paid) and searchntalk (Free).
Pay Per Minute for Skype Payment system for live interactions Are you a teacher, lawyer, coach, nutrition specialist, spiritual trainer, couple and relationship counselor, shrink etc.? Make your Skype ID public (or not) and sell your Skype sessions.