Social Comment Tagging becoming an essential element in Organic Search Engine Optimisation

Yahoo Acquires WebJay
Yahoo has purchased WebJay, a service built on user-compiled playlists. Along with buying the company, Yahoo has also hired (former) WebJay owner Lucas Gonze .
According to the Yahoo Music Blog, WebJay allows users to "create playlists using music/audio/video from around the Web (with a simple Web form, from scraping a Web page, or with a fancy Ajax interface created by a 3rd party using Webjay APIs), share them with others, include them on their Web sites, browse other users playlists, play the playlists in any media player, or cannibalize the playlists to create new ones."
This acquisition marks a further move into the music distribution business for Yahoo and another leap towards social comment tagging as an essential element in search optimization says the article in SEO news.