I personally do not know of a website where information can be obtained in reference to collaborative efforts.  I do know that there are a number of credit unions who are sharing resources to accomplish some of their daily tasks.

Collaboration is an essential element in today's credit union operations.  By collaborating credit unions who might not be able to deliver some valuable services to their members may be able to offer these valuable services either more efficiently or quicker and often at a much lower cost to the credit union.  To do so does not necessarily require that you establish a CUSO. 

Before getting started it is essential that all credit unions involved establish what I like to call the rules of engagement or in other words, set the expectations.  Some things to pay very close attention to are,

• By collaborating are you able to take advantage of the economies of scale with a vendor or by sharing a resource?
• Will you be able to lower the operational costs associated with the product in question by collaborating?
• Do the credit unions involved in the project have the same end goal in mind?

There are many more questions to be asked but you can at least get started if you think about some of things I mentioned.