Daily Twitter provides effectively the same kind of service that LoudTwitter does, except that it is managed within your own drupal site. What this amounts to is that, every day, Daily Twitter will pull a list of Twitter posts that a user has made, pull them together in a list, and post them as a blog entry to the user's Drupal blog.
This module brings the possibility to create forms which let users reserve things you define using CCK.
You know it from reservating seats at the cinemas, or when going out for dinner.
It was developed for reservating seats at a local theater.