It's possible to create groups of friends and then when you make a post, set it to display to a particular group. For example, I have 'Gamers', 'Close Friends', 'Coworkers', 'Family', 'College Friends', and 'Hometown Friends' groups (with some overlap of course). When I post something I can target it to the appropriate group of people.
Is there an easy way to choose who sees a particular post (ie, the way one sees a display of friends to click on when inviting them to an event)? They should implement this, allowing for deselecting unwanted viewers (rather than selecting for wanted viewers - for those with too many friends).