The World In Links [4/4-4/10]

Blogging: 4 content mistakes to avoid like the plague.
Cron: Managing Cron jobs w/ PHP.

Development: From a users perspective.

Design: Login / registration form ideas and examples.

GitHub: Why GitHub hacks on side projects.

Humor: 30 BSoD's to chuckle about. (also 30 reasons to buy a Mac)

MySQL: An introduction to using stored procedures in MySQL 5.

Node.js: Using Node.js, a video tutorial.

PHP: 10 super useful snippets.

WordPress: 21 free themes that are sure to impress users.