"According to a survey, one in four of us have regretted posting something on a social media site, mainly because it was inappropriate or upset someone. Around 40 per cent of 2,000 polled said they used websites such as Twitter and Facebook to speak up on an issue they felt passionate about. Almost half believed that what they said had made a difference."
Photo by Sergey Peterman, via Shutterstock

What people say on social media makes a HUGE difference. It's incredibly useful in helping me decide who to unfriend.
My tweets dissuaded an asteroid attack.
@NotAndersonCooper
Not actually true. *
* Asterisk attack.
Everyone should know by now that in order to make a difference you have to open a Tumblr.
my comments seem so smart but sometimes i worry about my comments.
@roboloki if I had 10 minutes to edit my comments they'd all end up "Deleted by user".
@Deleted by user So sad that I can't thumbs up "deleted by user" on this thread guys
I totally freed Iran when I turned my Twitter icon green.
I've successfully convinced most 4Chan users to eat cheese on Caterday.
Sounds like the internet and I have a lot in common
Inappropriate? I'm not sure I understand what'd be inappropriate on the internet. Like, a really respectful and compassionate expression of ideas, maybe?
I guess I can get off my SOPA box now.
@SidAndFinancy With laptops you can update your sorry status while laying on your SOPA.