hi i am on pay as u go with my mobile phone on orange a i heard on the radio there is a service online that u can send text messages to other people for free. is this true? does anyone have a link to good site that offers this service?

Yahoo has an online text message site:

http://mobile.yahoo.com/sms/sendsms


Have fun!

There are some decent firefox extensions which do what you ask. If you use firefox, check it out. If not, use firefox and check it out. I can't recommend any by name, because I don't use them but I have seen some.