Here are three articles from the ICT & Computing website which you may find useful, inspiring or both.
Classroom activities:
7 ideas for story-writing in Computing
Shock tactics: 7 ideas for teaching with technology
Use this as a starting point for a discussion about computerised services, or enjoy as a description of a Kafkaesque situation I found myself in while trying to buy a train ticket:
Health warning: can using the web damage your health?