I own a website http://www.whoisbid.com
and I have only ever experienced a really successful retweet once. Yes! It happened a few months ago and the amount of traffic it brought to my website was way above average. I know that it is certainly possible to tweet something on twitter and have it noticed by many people. Maybe someone else has experienced this before and has something to say about it. In any case, we cannot underestimate the power of Twitter and how it is able to bring more visitors to our website and blogs or even our videos. I don't know the secret to a really successful Twitter application but I am very aware that it has great potentional and so I value my Twitter account and want to stick with it. You can also Tweet me if you have some great ways to increase the effectiveness of a Twitter account because I will be very interested to read or to watch any really good information that anyone else is providing on this topic of Microblogging.