Erika Heidi created a nice solution to generate and update cover images on your Twitter account. In this blog post she explains it all.
PHP
Your System Isn’t Slow – Your Bottleneck is not Optimized
A bottleneck isn’t inherently bad, we all have them. What matters is making sure your biggest bottleneck is always working at it’s most optimal conditions. That’s where your optimizations should be focused. Read more