Online Calendar

[sphiclk]

I am on the lookout for a fast and basic calendar-cum-scheduler that I can use online, which will ensure that I don't inadvertently miss out on any of my social affairs, talks, appearances, and meetings. And this calendar scheduler must be usable and updatable in a hurry. I have been making do with a free of SharePoint setup offered from CloudAppsPortal; but now I can afford to experiment with membership kind of online scheduler and date-books. It must run just as well on different gadgets and even would need to display a dash board point of view to check everything in a matter of minutes. I am sure that some people in here would have experimented and tried out online calendars and schedulers other than SharePoint and any tips would be a great help.