Hellotxt posts your status updates from web, mobile, sms, emailor 3rd party applications through their API to more than 45 social networks. You can post your status once and have it appear automatically on all of your networks. You will be able to keep all of your friends up to date with ease. It also lets you read your friends' updates from main microblogging and social networks all at once.
Ping.fm is a simple and FREE service that makes updating your social networks a snap! You can use your Ping.fm account to update your Facebook status also. All you have to do is install the Ping.fm Facebook application.