folkd.com - social bookmarking
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Diigo - Better reading and research with annotation, highlighter, sticky notes, archiving, bookmarking & more.
Diigo is a powerful research tool and a knowledge-sharing community
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Scoop.it - Content Curation Tool | Scoop.it
Scoop.it enables professionals and businesses to research and publish content through its content curation tool.
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LinkedIn: Log In or Sign Up
750 million+ members | Manage your professional identity. Build and engage with your professional network. Access knowledge, insights and opportunities.
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News and Trending Stories Around the Internet | Digg
Digg is the homepage of the internet, featuring the best articles, videos, and original content that the web is talking about right now.
digg.com
Reddit is a network of communities where people can dive into their interests, hobbies and passions. There's a community for whatever you're interested in on Reddit.
www.reddit.com
Disqus – The #1 way to build your audience
Disqus offers the best add-on tools for websites to increase engagement. We help publishers power online discussions with comments and earn revenue with native advertising.
disqus.com