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wheel - 11:53 am on Oct 31, 2012 (gmt 0)
Twitter is little more than an email blast.
I am currently using it as part of a link building campaign. In particulary I've motivated bloggers to tweet about my link building campaign that they are part of. Some of their readers, who are also bloggers, read it and sign up for the link building campaign as well.
Other than using it as an email blast, it's almost as worthless as facebook.