Update
What with Google Reader shutting down on July 1st, I decided to download all of my Google Reader data via Google Takeout, and I thought I would share the info on the page for its humour.
Control your data
Grabbing a copy of your data? Great! We think it’s really important that you have control over your data. If you have time please let us know why it is important to you and how we can improve.If you have decided to take your data elsewhere, please take a minute to research the data export policies of your destination. Otherwise, you might import your data into a service that doesn’t let it out.
If you ever want to leave the service, you may have to leave important stuff like your photos behind.
Remember, your data is important! Do not download archives on public computers.