Last year, I did a research as a part of my MBA thesis on failure of CRM implementations in developing countries and compare the effective reasons from developed countries to the ones in developing countries. I uploaded the last chapter of it so you can review it. Get the report

There are lots of cases around the web dealing with cross-domain Ajax using JQuery. The main problem when calling an endpoint that is located in another domain is that browsers block them by the name of "same origin policy". While this is a security measure for blocking XSS, it's a pain the neck of a developer who repeatedly was said that REST and JSON are cool and easy. Fortunately there are some workarounds for that....