Entrecard is actually a free exchange widget program, but I see that it has become one of the best widget that really works these days. There are so many people have enclosed their experiences with the widget, and tell how Entrecard brought them many traffic, that Entrecard really works!
Now here I won’t talk about how Entrecard gave many loves to me, but I want to share some cool things that I saw relate to Entrecard.
1. U drop, I Follow!
I don’t know who started this first, but this is really cool I think. Look at the “widget” below, you can place it on your blog if you want to 
Now guys, you can put back your nofollow tags on your comments and Replace the You Comment I Follow slogan with it.
Rome @ Jackbook