You said it (again)...
Here are the results of the most recent mini-poll on the optimal online course duration:
A normal distribution, with 30-60 minutes more than 2x as popular than any other choice. Another look at the data is 60 minutes and less received 76% of the votes cast, and 60 minutes and above getting just 24% of the votes.
March Poll:
Back to basics and away from instructional design - What is your favorite way to learn a new business skill? Click here to vote.
My answer to the "other" March poll is UCLA over Georgetown, 80-76...