First find an interesting story anywhere on the interweb and copy the URL.
Then go to www.reddit.com/submit
and submit your story.
You'll need to register, if you haven't already. You'll also need to add Marijuana as one of your sub-reddits. That way, your story will automatically appear here.
The news story will automatically appear on this very page.
If you like a story, you can go to Reddit and vote it up, that way it will appear higher on this page.