They call themselves Lone Signal and they give you the opportunity to send your message to the closest target that they believe intelligence life could exist. Right now current location the messages are sent to is Gliese 526 which is 17.6 light years from Earth. The target will change every once in a while to increase chances of your message reaching aliens.
Your first message you're allowed to send is free. After that you could buy different packages to send more messages by buying 4, 40, 400 and 4000 credits. To send a photo will always cost you three credits. To send a tweet like message is one credit, but longer messages will cost a few more credits.
So far I (Scott C. Waring of UFO Sightings Daily) have used 148 credits to send photos of my family, Yoda, Cars and my dog wearing 3D glasses. I also send a lot of tweet-like messages about UFO sightings, questions I have, or even light hearted jokes. It's just like Facebook or Twitter messages, except these will last millions of years and one day be read by intelligent life forms, no pun intended.
Even Hollywood celebrity Dan Aykroyd came and sent a long message into space using Lone Signal. This is the exact same station that received the first signals when men first walked on the moon back in 1969, then it transmitted the video to the rest of the world...all because of the Jamesburg Earth Station.
So what are you waiting for? Go and send your free message into deep space which will travel in for millions of years at the speed of light. Paper may fade and crumble, CD and DVDs will crack and break, but in the vacuum of space...your message will travel...forever across the universe. Scott C. Waring