I noticed this morning that the “Share link” button was missing the reddit alien logo. It was still possible to share to reddit by clicking where the reddit alien icon should have been — but I’m not sure how anyone would have noticed that. Now, when you click the 
icon at the bottom of a topic or comment, you will see the Reddit alien, as well as twitter, facebook, and email icons.
If you have additional social networks that you would like to share to easily, please reply to this message, and we’ll see what we can do!