ping.fm is a pretty cool way to push to twitter, facebook, friendfeed, etc. dm me for invite code, I have a few left
treocast
shares
if you run out, the code 'pingscompany' should work.
subjugate
says
and it hasn't gone down... yet 
netwalker
says
I have tried ping.fm for a while, but had some troubles with no sending the posts to all the services, i prefer hellotxt.com
subjugate
says
i have not had any issues yet, only a week in. I have friends that have used both. will have to ask around
netwalker
says
i had the issues around last week, but haven't tried lately