When you 'like' a page of a web site and you have the right meta tags, Facebook will essentially create a FB Page for that liked page. This gives you a way to update all fans of that page. To do it, you have to be listed as the admin of that page. It's all explained rather well here: http://goo.gl/zKM7
Now, the question: suppose I don't want to have to go through the admin page link that I find next to all my like buttons? how can I publish directly to the graph object e.g. graph.facebook.com//feed ?
If I attempt to do this I need an access token. How do I get an access token to these generated FB pages?