Drupal 6
While Drupal for Facebook module seems to be the best and most flexible option out there for integrating Facebook with your Drupal website, one thing about it that ticks me off is its forced single sign-on approach between Facebook and Drupal.
If you have Views' module installed, you can use its views_trim_text() function to programmatically trim field value (or any other text for that matter) to a specified length from your code.
Following on the announcement from my previous post on this topic there have been some heavy changes just pushed to 7.x.2-x-dev branch of Views RSS module.
Reconsidering format of preprocess functions variables.
New 6.x-2.x-dev version of Views RSS module has just been pushed to d.o., introducing field formatters returning elements formatted as D7-style extended array.
theme7 is a very small utility module providing theme7() function as a wrapper for core theme() function, with the only difference being that it accepts all theme hook arguments as an associative array of variables (like in Drupal 7) instead of list of arguments (standard way in Drupal 6).
Provides callback-based access control for Views.
Provides integration with Bulk SMS gateway.
The Drupal Form API provides sophisticated form techniques and also allows for almost unlimited possibilities for custom theming, validation, and execution of forms. Even better, ANY form (even those in core) can be altered in almost any way imaginable - elements can be removed, added, and rearranged.
A friend asked me recently how to create a table in Drupal in a proper way.