Resources include time, talent, and budget. This will also determine which medium is used. For example, if there are two days to prepare, you need to consider what can be done in two days to accomplish the goal and meet the objective.
Available resources can be a big factor in how sophisticated the custom e-learning can be. The more sophisticated the e-learning—applications that include animated demonstrations, simulations that allow participants to practice what they have learned, or assessment and learning management—the higher the costs.
The return on investment from a well-planned and well-developed e-learning program is high and well worth considering, In any case, the capabilities of the delivery medium versus the goals and objectives must be assessed.
So, which medium is best for e-learning? Any electronic medium has its own advantages and disadvantages and should be used based upon its effectiveness, costs (in terms of both time and money), and ultimately the return on investment.