This article from the Engadget web magazine discusses how your online searching behaviors might be monitored by different companies that you are unaware about. This data is likely used to build profiles that may impact the advertisements you see, credit ratings received, and other potential social network aspects as of yet identified. 

One consideration as you gather and store more personal health information on your computer and devices is making sure that you are not inadvertently sharing this information (or some other aspect of your personal health) through your webcam or mic.

This article from Zapier outlines several different ways and some handy applications that can help you control this on your PC or MAC.

You are impacted by the things you see and read whether you like it or not. It can be hard to erase from your mind undesirable images or messages you receive and they can cause much angst, anger, doubt and grief.

Twitter has recently posted a set of instructions on how you can control what you see on twitter, the conversations you are a part of and the types of notifications you receive.

Take action and mute bad messages so they don't impact you negatively. There is a wealth of good information out there that will engage your mind both positively and critically without exposing you to harm from trolls who are out to manipulate you.