September 28th, 2009 | 
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Twitter’s replies and mentions (@) are the same thing. Where you put it is the difference.
When you @username at the beginning, you are replying to someone and only people who are following the @username will see this reply on their home timeline.
For example: @Ravish30 I want to win the Tupperware bowl on your blog contest.
When you @username anywhere in the tweet other than the beginning, everyone following you and not following the @username will see it on their timeline. It’s like a general broadcast.
For example: Shelly –> @Ravish30 is having an October blog contest http://wahmshelly.blogspot.com. Great prize!
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Love your advise, thank you for all your tips. I love my work at home Career, it is the real deal. We have been in business for 17 years. Wanted to thank you for the twitter tips, I will defintely start using my tweets in this form.
Thanks
I agree. Twitter is fantastic when its used properly :) Great tips Sophia.