The term "social media" is a broad one that may refer to any number of internet applications that are used as tools for communication. So while you might instantly think of Facebook and Twitter when you hear the term, it could also be used in relation to your website or your onsite blog, depending on how you have set them up.
The hacking of over 6 million passwords from LinkedIn should have all of us worried. I checked my LinkedIn password using a free tool from LastPass. And yes it was hacked and published. Security experts are advising everyone to change their LinkedIn passwords and if they use the LinkedIn passwords for other sites to change the passwords on those sites as well.
Don’t make it easy for hackers to breach your personal security by using the same password and email address for your email, PayPal, online banking, eBay, and on and on.