Here are just 3 of the differences between Search Engine Optimised and Search Engine Friendly websites:

An Optimised page has carefully researched and tested page titles and descriptions which perform well in search engines.  A Friendly page has well-written unique page titles and descriptions which explain the page simply and accurately.

An Optimised page has content carefully written to incorporate key phrases which, on the basis of research, will help the site convert search visitors better.  A Friendly page has content which has been carefully written to be clear and understandable to the widest possible range of people.

An Optimised page is designed to influence visitors to follow navigation paths which drive them to accomplish conversion tasks: sales, registrations, or sales queries.  A Friendly page has made certain that all navigation paths are ‘followable’ by a search engine to make certain that all important pages can be indexed.