In today's modern age, I found difficult to have a live realtime answers to a question.
When we have all the tools and communication means available.
so here is how I'd like to address the problem
people with questions to people of knowledge for answering.
you have a set of skills, you can open live channel for each one of your skills
you have an immediate questions, you an connect to a channel related to your questions
in a way it follows a subscribe/publish/connect model
you subscribe to a channel someone publish questions to the channel you connect with the person to provide your answer.
to begin ... here are the channel I propose