I have added a share button on each of our flightsim addons downloads, just click on it, login to your Facebook account and you will be sharing that add-on with your friends.
How its works?
Its very simple, each add-on has a share button, when clicking on it a new window will open asking you to login to Facebook, then you can enter a comment and your shared addons with a picture will appear on your Facebook links. Thats all.
Hope you will find it useful.