How do I add tags?
Add tags simply in the subject of your email using the syntax ((tag: apple, gadgets)). This works in the bookmarklet too. You can see your tags on the homepage of your site and click on them to see those posts.
Remove your email signature
End your post with ‘#end’ and we’ll ignore any text we find after that.
… err.. but the tagging only work within inside the posterous,
how did I can export these tag also to other wordpress blog as tag..?