I went down to Yahoo! Hack Europe 2013 in London this weekend. I've got to say, Yahoo! can put on a good show. The venue and creature comforts were all very impressive. Saturday morning was filled with tech talks from a bunch of Yahoo! and other...

At the London Ajax meetup this week, Piotr (one of the creators of the rather good jsfiddle.net talked about spinners — the pretty common "I'm doing something" indicator — and how users perceive them. Apparently, people perceive Chrome to be faster...