Just created my Twitter account and activated the app on my Netvibes page so feel I can follow tweets without getting overwhelmed.
I have yet to post a message or retweet a message. I thought  you needed a mobile phone to tweet- so am reassured it's not essential. Some-one I know uses Tweetdeck to organise her Tweets. I'm not sure I'll need that. I'm already reading Tweets about thinngs I don't want/need to know about!