Hello, I just started analyzing some long tail keywords and i would like to know your opinion about these two parameters: KEI and KOI. What is considered to be a good KEI ( keyword effectiveness index ) value? What about the KOI (keyword opportunity index) ? What value is considered to be a good one when talking about KOI? Thanks!
Keywords are not so important like web content these days. By the way, look please at my website below and see fabulous photographs in 3D