It's not necessary to write the http:// protocol when you are typing a URL as the browser is able to put it in itself.
Mr Kenny's ICT has two different URLs.
- www.ict.stmartins.org.uk
- www.smict2013.blogspot.co.uk
These infographics will help explain the different elements of a URL.
Original image URL: http://media.hsl.washington.edu/media/schnall/nurs499c/url.gif
Original image URL: https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcS2t3ofKoY2ZmM3261nMRwtLerFjpqiu_h4RmLstMv_bohasAKODw