This video covers the Credential Harvester Attack of Social Engineering Toolkit, which is basically used for making an Automated clone and get credentials of the victim.
I had done it with a small setup of One machine with backtrack installed and other one being XP as the victim.
However a small issue comes with it. Why the victim will open your IP?
Well simple, get into the DNS server, or create a fake DNS server and DHCP, and start giving IP with your own authorization. Once you are done with fake DNS, make a fake entry for gmail.com poting to your Fake IP address.
In case any issue comes in between, feel free to contact me at firstname.lastname@example.org :)
Stay Focused, Keep Hacking.