fxspy is like Firebug for Flex. I think in 2 days I cannot imagine the world before anymore.... (check out the demo: click the button in the upper right corner and edit property values). Installation instructions are on the wiki.
In case you follow the Rails community you must have come across this New Year's rant of Zed Shaw, creator of Mongrel. It is really tiring to read as Zed seems to be a textbook-case for ego problems. However, I find this bit really interesting:
I believe, if I could point at one thing it’s the following statement on 2007-01-20 to me by David H. creator of Rails:
(15:11:12) DHH: before fastthread we had ~400 restarts/day (15:11:22) DHH: now we have perhaps 10 (15:11:29) Zed S.: oh nice (15:11:33) Zed S.: and that's still fastcgi right?
Notice how it took me a few seconds to reply. This one single statement basically means that we all got duped. The main Rails application that DHH created required restarting ~400 times/day. That’s a production application that can’t stay up for more than 4 minutes on average.
Let me put this into perspective for you: I’ve ran servers that needed to be restarted once in a year. They were written in …