Now a days everyone try to share more than they did before. Location sharing is really interesting.
It has become more interesting by maptwits. They make itso easy that one can share location based map with twitter, even not having any gps enabled device. :-)
What you have to do, just go to maptwits.com from mobile or pc, write the name of location that you want to share at twitter. It will located at map, then just write what you wanna share and send to twitter.
In twitter it will show your twitt and the map website.
Very easy, not only very easy but also very interesting as well.
Happy twitting :-)