Sometimes Links can get very long.

--> http://files.posterous.com/boesch/5qLk84Rvg0fNifioHetprzj4LF5uAQ8DllckJ2qMgivb2JliIdIJl6W6AUGz/Foto.jpg.scaled.500.jpg?AWSAccessKeyId=1C9REJR1EMRZ83Q7QRG2&Expires=1259743926&Signature=6gJJmfeEeQk56Iq6BFYQgs9%2FkUE%3D

You can shorten them using Services like tiny.url or bit.ly

--> http://tinyurl.com/airport-cologne

--> http://bit.ly/airport-cologne

You can choose an optional name. And - if you have an account - you can see how many people clicked on your link using bit.ly.