Well said lil. The dots are indicators of a post/comments appeal or usefulness. You can equate it to an "up vote" if that helps. As you receive more of these on your posts/comments your hubwheel beneath your name in the upper left hand corner begins to populate. Once its made a full rotation, you receive a "badge to give". This means that you can "give" a badge to one of your fellow hubskiers in appreciation of a post or comment. You can't see it now, but once you have a badge to give there will be a +! next to each post and comment that you click in order to give the badge. If you are interested in sourcing some cool content from past posts, I recommend clicking on "badges" under the "discover" tab on the left. Let me know if you have any more questions and welcome to Hubski!