Michael Kors has two lines, Kors by Michael Kors and Michael Michael Kors with the latter being his more inexpensive line which is basically everywhere online.
Snap Guide – Good basic Michael Kors Handbag authentication guide with photos
DetectFake – Beginners guide to authenticating Michael Kors handbags
Bellatory – Michael Kors handbag authentication guide with comparison video
Authenticators R Us – A few good points when authenticating Michael Kors Handbags
My Great Challenge – Good authentication guide for authentication Michael Kors