I am going to try to write more on this site.
Im doing it by texting from my cellphone.
I send a text to a number from this site http://www.connectotel.com/sms/mmail.html
which fowards it to gmail.com
then my gmail has a filter to send it to this site http://posterous.com/
which is set up to post to here. there is probably a easier way to do this but this is what i do