Tagth.is allows you to make information flow from twitter to other apps. All you need to do is start your tweet with '@tagthis'.
Tagth.is needs to recognize you, and must know where you want to place the information. That's why you need to set up an account here, and tell tagth.is what your Twitter name is.
In addition, tagthi.is needs to know where you want to leave the information. Right now there is support for the Delicious and Magnolia social bookmarking sites. So any link you post @tagthis will be added to your bookmarks!
tagth.is