Source –http://info.icopyright.com/terms.asp
This is very useful if you are either a content generator (to help protect your copyright ) or if you use free content (as in Business Research reports for commercial uses). A Hyderabad based company once got in trouble because someone was using UN data (which is free) without ascribing the source, to create a database. Had they just used source -UN , they wouldnot have gotten into any issue at all.