You should decide on one place where people need to go to read it and then only post there. You can post teasers elsewhere (like the first paragraph, with a link), but I presume part of your reason for blogging is to get people involved with you and your site. So you want people to go there.
Brendan, I took this advice and it has increase traffic to my blog. Thank you for the advice.
Today may be my best traffic day yet.