Not everyone who makes a post about your business tags you in Twitter or in Facebook. And not everyone who blogs about you let's you know about it and sometimes they may not even show up in Google Alerts.
So, once in a while you should check out your brand name in Topsy. Topsy is a free tool that helps you see what people are saying about your company on all public social platforms. You can choose how far you wanna go back and you can choose the forum - like if you just want to see posts on Google+ or Twitter.
Topsy is also a place where you can research what people are saying about a certain topic or product. Keep Topsy in a bookmark on your computer and check it out every few weeks if you can. If people tweet something about you should respond on twitter. Tweet back and say thank you or address their concern. Same goes for Facebook and Google+.
Topsy helps you stay on top of Social!