Allen_Graves - 2:56 pm on Aug 2, 2010 (gmt 0)
Not Twitter, but blogs and niche-related authority websites. And I'm not talking about comments either.
You want to be an authority, not a commenter!
Sometimes you have to do a little work to get them to let you write for them, but it pays off with just a few. Once you get the gigs, treat them like gold!