Did you ask about the free or low cost method to start using Bing? Are you asking about training material on how to use Bing?
It is a fairly simple interface and very similar in nature to Adwords. In general, the competition is a bit less, but in terms of ROI, Adwords will get 90% more traffic, so I recommend focusing the time and energy on the platform that has the highest availability to scale. If you have a very low advertising budget of less than a large one, Bing is not a bad way to start.
Feel free to ask Bing specific questions and I can probably answer them for you.