Finally some light (after all the heat and smoke).
Source:
http://www.searchenginejournal.com/g...-on-seo/29312/
Quote:
Google’s Matt Cutts explains exactly how the shortened URLs are treated. Cutts states that almost all shorteners are going to use a “301 permanent redirect” to move the page to the appropriate destination, and that Google will treat any links to that 301 redirect as being a link – for the sake of pagerank – to the destination. That destination page will also receive the “social promotion” bump for any friends/followers of the original tweeter.
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Quote:
For one, most core pages on sites like Twitter have nofollow tags on any outgoing links. That doesn’t mean that the links are irrelevant, though. Beyond Google’s own social promotion, Cutts states that the links may be found in other pages – such as data feeds – where they will pass on link juice.
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More info on linkbuilding
http://www.highrevenue.com/tag/link-building