In the last few years, I have seen some sites such as directories, blogs, top lists, tgp's, etc. that build their traffic on recip links and bookmarks suddenly change the site into a paysite....and of course capitalizing on all those inbound links, bookmarks, brand, built under the previous incarnation of the site..
And, it appears that the switch to a pay site model is usually done without notification to those inbound links that they are switching their site over to this new format..
Is this a strategy that is ethical to pursue?
Is it good business practice?
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