Should we add a hashtag, or other particular prefix/suffix to the blog tweets, to distinguish them from the regular question tweets? If so, what?
It doesn't have to be a hashtag. What about:
Edit: I've modified the Twitter settings, so all blog tweets should now be in this format.
It seems that most tweets from https://twitter.com/#!/StackSecurity link to new qustions, and have a hashtag set based on the tag of the question. The tweets about blog entries have no tag at all.
I think just #blog is good. I like the sound of #SecSEblog, but I think for this case we don't want a unique hashtag. After all the sender is already sort of a brand combining StackExchange and Security. We want a hashtag that is helpful and ties us in to other stuff in the blog world. So #blog seems to fit the bill.