One roadblock encountered is the belief that information professionals should not be Internet trainers. Time can be another obstacle. Training does not occur only on the day it's scheduled. It requires a lot of planning, preparation, and advertising. The time it takes to design training sessions depends on the format, complexity of instruction, experience level of the author, degree of inter-activity, and the types of media used.
Ignorance can also have an impact.
Many Internet users doubt they need additional training. It's up to you to show them what they're missing. Show an interest. Don't wait to be asked to provide assistance. Talk to potential clients in the lunch room, reception area, or even elevators.