atdev

The phpMyDirectory WordPress plugin allows wordpress users to log into phpMyDirectory. The plugin is configured in the WordPress admin area.
Users only need to log in once and they will be automatically logged into phpMyDirectory. This allows phpMyDirectory to be used alongside WordPress and for a directory to be easily created for WordPress.

phpMyDirectory

Allows wordpress users to automatically log into phpMyDirectory.  The sessions are shared and accounts are created automatically if they do not exist.

curlybracket

This plugin creates a widget which will show the title, thumbnail and link to the last 5 posts a user has consulted. 
To store the data it uses sessions.
Session handling is provided by slightly modified functions from the simple-session-plugin by pkwooster.

Last Seen Posts Widget

Show title and links to the last 5 posts a user has consulted.

phpMyDirectory vs Last Seen Posts Widget