This is an IT journalist's persepctive on why search engines and aggregators are not stealing content. It gives enough technical background of what search engines and aggregators actually do without boggling the mind of internet users who just want to create, forward and follow links in the way the internet was designed to allow.
http://www.itpro.co.uk/blogs/daveyw/2010/01/09/murdoch-cuts-off-news-nose-to-spite-face/