I have discovered a great little site called http://Ping.fm, its really cool for updating many of your social networks with one posting!
Check out the website, it is still in Beta phase, if you need to sign in with a Beta code, you can use “landofping” as your code, which will allow you to complete the signup process.
Networks that it will update for you are:
You are able to post to specific services by grouping, such as bloggin, micro-blogging and status updates.
You are also able to get a “ping this” code for your blogs etc, so that visitors to your site can share over all their social platforms they have setup.
I am still new to the system, but so far am impressed!