Paid content and the invisible web

This week's Stop the Presses focuses on the problem with paid content on news sites being unavailable to search engines. Outing has been getting increasingly anxious about this issue and the growth of the "Invisible Web" -- the information on the internet that isn't seen by the major search engines. The options? Either to provide access to paid content to the likes of Google, so the content can appear in search results; or to provide free summaries of every premium story, so that summary at least is seen by all. Both options raise questions about how such stories should be presented by search engines -- should they be separated out from free content? Should they be "tagged" -- and about the issue of payment in general, and referral fees in particular.
(From Editor & Publisher)