OPENID- is a tool in the internet. it would help to a user to get identified in his/her social website or any other website. moreover, it's like an ID with other features for various website.these "other features" is the user can associate information with this i.e. email,name, address and etc

OpenID also makes signing in to websites simplier, it would also make you less forgetful because, with your openID, you only have to remember one account username and password.it also makes your logging in Secure. what's cooler than that?!

it's like having a different multiple user accounts but remembered as one single user.
anyway's here's a simplier taught of open ID

• it helps you signup,login in other websites
• is simple
• is a proof of identity (a way to prove you you really are )
• and  secure