StumbleUpon, Digg, and Empire Avenue—among others—aren't worth the trouble, this blogger says.

 

Do you feel like you must be on all social media sites? They can eat up a lot of your time if you are on every one. I've joined most of them in the past three years, and have seen many of them change. A few don't drive the traffic they once did to my websites or blogs. Why spend time on them if they are not productive?

 

Here is my list of social media sites you should ditch...

Via Jeff Domansky