Need essay writing reference

Hi,I am new in this forum.I like .net and C# language.So i bookmarked this forum because here i got different and helpful information for improving my knowledge.But  now i have one problem about my essay writing.I got essay writing work but i have not reference .I heard  many resources like custom essay writing service  (http://rospher.com/) and  other online academic resources.But i not experience with these resources so i am asking anybodies know about the good resources or references.Please share