Web Workers Daily has an interesting comparison of two web calendars, Google Calendar and 30boxes. It's worth checking out if you are undecided on the issue, though I would have preferred to see a comparison of Yahoo and Google or Airset and Google. This is a topic that I have spent a lot of time looking into (way too much in fact) and one that I could spend hours writing about, so I will keep it brief. 30boxes is a solid calendar, but Gcal is much better. 30boxes seems very dated, is not integrated with my email, and does not have as good teamwork/sharing features as Google. I'd love to pull for the little guy or completely surprise everyone with some crazy choice for my calendar, but Gcal is just too good. I was surprised with how much I liked Airset last time I used it and Yahoo's is not bad either (neither is 30boxes when it comes down to it) but Google has the clear winner here. Maybe sometime when I am really bored I will get into my reasoning a bit more deeply, but there are a lot of things to factor in and after having done my homework, Gcal's my pick.