"Turns out the best time depends which social network you're posting to, according to popular URL shortening service bitly. It tracks metrics on bitly links that are shared across networks...But each social network has its own "culture," bitly says, and users exhibit distinct behavior patterns. Here's a rundown of bitly's findings on the best times to post to Facebook, Twitter and Tumblr."
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http://www.entrepreneur.com/blog/223569?cm_sp=nextarticle-_-223569-_-222466
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http://www.hubspot.com/marketing-ebook/how-to-use-facebook-to-grow-your-business?source=hspd-marketingprofs-dedicated-eml-use-facebook-to-grow-your-business-ebook-20110809
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http://www.dummies.com/how-to/content/content-popularity-and-architecture-things-all-sea.html?cid=dn_article
To boost the number of LinkedIn network contacts, make sure you're fully using all your network-building options. To see what those options are, click on the Add Connections link at the top-right corner of your LinkedIn profile. When you do, you’ll see the following network-building options...
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http://www.dummies.com/how-to/content/the-bare-essentials-of-linkedinstyle-networking.html?cid=dn_article
Web traffic to Pinterest traffic surged 50% from January to February of 2012, enabling the invitation-only site to overtake LinkedIn, Tagged, and Google+ in total monthly visits, Experian reports.
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http://twitterwatchdog.com/promo/success_guide.html
Facebook has at long last offered an option to use the encrypted "HTTPS" protocol, a feature it will begin rolling out today but won't finish for a "few weeks." You should check now if it's available, and sign up as soon as it is enabled for your account.
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http://gawker.com/5744229/the-facebook-setting-you-should-change-as-quickly-as-possible