Sorry for that. It seems that it ended up at some social networks today and I'm having much more concurrent visits than often. My hosting provider thought that I was being hacked and closed access for some minutes but now it's up again. I just talked to them and they increased the connection limit, so things should get better shortly. Sorry again, I hope you can enjoy the article and subscribe to the RSS feed if interested (http://ignaciomellado.es/blog/feed). You can also reach me on Twitter @uavster.