I don't want to have to update my status several times

I have accounts on several different social networking sites (mainly just to try them out). As a result it is a major pain for me to keep an up to date status message on each of them. What I would really like is to be able to update my status on one site and have that updated status automatically propagate to all of the various sites which provide a status tracking service.

I haven't (yet) found an ideal solution, but I have at least found two different ways to update my Facebook status without ever having to directly launch Facebook.

1. I installed the Twitter application on Facebook, by following these instructions. Now each time I update my twitter status I can have the status update automatically propogate to Facebook by simply appending #fc at the end of the status message
2. I linked my Plaxo account to my Facebook account by logging into Plaxo and clicking on "edit my profile", selecting "websites" tab and then clicking on the Facebook icon and entering my credentials. Now any time I update my Plaxo status it automatically generates a Facebook status update with the same text and visa-versa.
   

Am I the only person who thinks it is a major pain to keep updating my status on all these sites? Does anyone know of a cool solution that they can point me to?

[Update 26/May] - It turns out that the Plaxo/Facebook connection is bi-directional and not one way as I originally stated (the Facebook to Plaxo update just happened very slowly so I thought it wasn't working)

[Update 4.June] - Robi Brummer pointed me to ping.fm which is a great site for updating several sites at once. The list of services that work with ping.fm is truly amazing