E learning pricing strategy

Compliance Learning Solutions (CLS) is an online compliance learning company. Our website address is www.compliancelearningsolutions.com. We are developing a new website that will have five to six additional online courses, which will bring us to around eighteen online courses.

We have been working on monthly and annual customer pricing strategies, but need help on how to best come up with monthly and annual pricing strategies.

Some additional questions are below:
1) We have our current online course pricing at $20.00 per course. Should we increase the list price from $20.00 to $25.00 to $30.00?
2) How much more should we charge if a customer wants to pay monthly to have access to all of the CLS courses we offer versus choosing and paying for specific courses they need at this time.
3) If a customer or a Group Leader wants to create their own course bundle, how should we price the course bundles and communicate the pricing?
4) Should we offer certain incentives or discounts after a customer purchases a certain number of courses at one time with a credit card?