This is my first day actively participating on StackExchange but I've experienced at least two outages today.  Is it always like this?

> Edit: This just made me curious about whether it was a known issue that stack exchange is bumping up against [scalability concerns](http://highscalability.com/blog/2009/10/13/why-are-facebook-digg-and-twitter-so-hard-to-scale.html) similar to Twitter, Facebook, etc.