How to add a link in navigation to my blog posts

Whenever you are not certain you are explaining an issue or asking a question in terms that are easily understood adding a link to your web site and naming your current theme can be very helpful in providing suggestions.

I also want to add “blog” to the menu, pointing to the most recent post. I am using WP3.0.1 and Twenty Ten.

I found “Post Tags can also be added to menus. Three tabs, Most Recent, View All, and Search, determines what categories are displayed for selection as a menu item.” in Codex. So I made a post tag to see if I can select that on the Appearance > Menu but no “post tags” box appears on the menu panel.

Any help is appreciated.