I am not a top user of Twitter as I don’t want the world to know where I am or what I am doing every single second of the day, and I really can’t be bothered to continually entering such information. What I do use it for is when something strange, daft, annoying, significant or interesting happens, as well as when I post something to one of my blogs, or upload a photograph.
To date I have been doing all of this manually as there is no way to use plugins with Blogger, Vox and flickr to do this automatically. I was considering creating an online application that monitored the RSS feeds for the blogs and photo sites and used the API to update Twitter, but I waited long enough and someone else did it for me by creating twitterfeed.
You simply login using OpenID and tell it the Twitter account and RSS feed details that you want to link. You can also alter the frequency that it checks the fee, the maximum number of items to notify and a prefix for the tweets if you like.
There are a few services that offer a live blogging service like Twitter and can do the same. Jaiku has this RSS monitoring functionality integrated and I am hoping that Pownce will in time integrate feeds in a smiler way. As for Facebook, the Facebook API, need I say more. Also Tumblr can monitor RSS feeds for you as well. Finally if you just want a combined feed of all your feeds without complication then I recommend the simple to use afeeda that Dave demonstrated for us at BarCampSheffiled.