Our friends over at iCalShare let us know that they have added calendar previews to their popular site, which offers over 1250 calendars in over 30 different categories for Apple’s iCal. With calendar previews, you can now preview calendar content without the fuss of launching iCal and subscribing to every calendar you find interesting. They’ve also added two new ways to browse their calendar library. The ‘Top Calendars’ page lists the most popular calendars on iCalShare, while the ‘Recent Calendars’ page is a quick list of newer arrivals.