I've seen succuss with meeting with partners to show them a one-on-one demo of the product or asking them for product feedback. I also provide free sandboxes so long as we are moving towards partnership.  

Service partner

Hello, using the idea of "give value first and early" in the partnership. What type of resources that you guys give to your partner in order to give the first value to the partner? Could you rank the most effective ways to create a reciprocity from you partner?