So, to source within Sitepoint you simply need to create an x-ray string, like the one below.
If you run the strings above in google you will get the results below.
Then use your social detective skills and you are set.
If you need more info on X-raying see my blog post http://www.recruitingblogs.com/profiles/blogs/seeing-what-is-really...
Until next week may the source be with you!!