Originally Posted by JonNYC

If you look in your User Control Panel you can see the last 10 reputations given to you. There will be a little dot next to each reputation:
• A ? dot means the user approved of your post, and as a result your reputation has grown,
• A ? dot means the user disapproved of your post, and as a result your reputation has "taken a hit",
• A ? dot means the user giving you reputation has not yet met the minimum qualifications to do so, and you will have to read the associated comment to determine what they thought.