allow users to post on other users profile pages.
ok so am learning php :)
i can register a user get him to log in and display a profile page with info about them that they can edit.
now i am moving on to allow other registered users who also have there own profiles to be able to post on there friends profiles (like face book) but i cant get my head around the database relationships to allow posts to only appear on the profile page that it was posted on.
can any one push me in a direction to what to look at that can help me understand how to do this