Content management systems Google Metadata Social Networking 
ProBlogger
AUGUST 24, 2014
Twitter, that always-on social network that is constantly abuzz, and Google+, a social network claimed to offer incredible SEO benefits, offer two incredible ways that complement each other to solidify your digital presence. Introducing Your New Best Friend: Google Authorship. But how, you ask?
Buzz Marketing for Technology
JUNE 27, 2008
PLEs are meant to simplify managing these artefacts, creating meaning through aggregation, linking and metadata tagging (eg comments, keywords). services like social bookmarking or photo sharing. In a more advanced, customised example, data from a particular Google Spreadsheet could be fed into Google Earth.
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