Apparently, yesterday was World Storytelling Day and so BBC Five Live asked listeners to send in emails, text messages etc describing what they were doing at midday on Tuesday 20th March. If you click here you can what kind of responses they got.
This sounds like a great idea for a lesson, i.e. ask your students what they were doing/thinking about at a particular time on the day of the lesson. Their answers can be posted on their blog(s) as text or in the form of a YouTube video.
Alternatively, you could ask them to take a picture at say 3.00 pm Thursday 22nd March and post it on their Flickr page along with a suitable title and description. See here for Five Live's photo set.