If you would like to connect with Cliff to get help with your specific presentation or to ask a question, the best way is to ask him directly at a BBP Online Weekly Webinar. 

Otherwise, feel free to post a question at the Ask Cliff Discussion Board. Just open a new discussion thread or reply to an existing one and post your query (the response time depends on Cliff's calendar availablility, but he will get back to you as soon as he can). 

Also, feel free to post your technical questions at the BBP Support Forum, and if you want to see something else that's not on BBP Online, please let us know your thoughts at the BBP by Request discussion board.