Where can I find information on the social networking site Skype?
You don't say what about Skype you want to find out.
But one place to start is the ProQuest Central database; look for a link to it near the top of the Find Articles page of the Online Library.
Just to see what I might find, I typed this into the search box: skype "social networking"
Then I checkmarked the Full Text limit below the search box and clicked the orange search button.
I found thousands of full text articles listed.