Providing highly relevant user feedback
Posted Sep 15th, 2008 by garrettWeb site features and functionality continue to grow, making it important to carefully consider and display only the most relevant feedback to your users.
I came across this example when trying to find a service to update my status on various social networks. To help uncover the problem and the solution you must understand how your application will be used.
This example discusses the default link or trimming behavior on HelloTxt.com and Ping.fm, popular web status update services. Link trimming is important because many micro-blogs, such as Twitter, Yammer and Facebook limit your post to about 140 characters.

HelloTxt.com provides no indication they will shorten links automatically when posted.

If you have shortened the link or you’re posting a short link, the hellotxt.com link (posted on Twitter above) may be longer than your original link.

Ping.fm provides relevant user feedback by indicating links will be automatically trimmed. You can disable Ping.fm link shortening by putting an asterisk in front of the desired link.
Thank you Garret,
i take your post in consideration during the clean up of the home page of HelloTxt.
Fabrizio