What if?

What if you could crowd source your life?

For instance... I want to start a wiki of things I need to consider in an apartment and roommate for full time. And I should start a list of things I want to make sure I do while I'm in Chicago. But what if other people could add to that list to make sure I don't miss out on things? Specifically catered to me..
For instance... I have many lists of classes I want to take in my one remaining semester... but they keep being scattered random places, and I want other people's suggestions.