A. Social media is still a confusing place for many people. Sites like Facebook and Twitter are adding features every day, and new networks pop up all the time. Keeping track of all of them is a hassle.
It's good that you are being cautious. Facebook's constant changes make it harder to protect your privacy. That's why I wrote my Guide to Facebook Privacy e-Guide. I recommend it to everyone who uses Facebook.
The "Like" button has especially evolved over the last couple of years. Instead of simply liking the pictures or posts of your friends, you can now like just about any piece of content. You can even like things that aren't on Facebook. But should you?