Benefits of Plus one in Google+ ?

[Andre]

Hello,

Can you show me Benefits of Plus one in Google+ ?
someone want to add +1 for your websites or blogs but I don't know what does it mean for ?

Thanks

 

[bruno007]

Recently Google+ surpassed twitter and became number two social networking after Facebook, this shows the importance of +1. My opinion is that +1 is very important social signal along with re-tweets, shares, mentions, +1 increases the authority of content.