The posted today was on user’s relationships <3.
I mean a relationship as a way of relating two user together based on a common entity. As you read through the tutorial think of relationships not only as friends but users being able to have multiple kinds of relationships. For example, users can be friends, co-workers and also school mates.
When building a social site, those connections also be to distinguish was type of relationships are able to view certain content. Only share this picture with users who are family. In other words, you basically have a way of setting up a social setting similar to Google’s circle. Always remember to think outside the box when programming and the possibilities will be endless.
User Relationships: http://www.prodigyview.com/tutorials/slideshare/389/111