Upcoming.org/Yahoo, Zvents and Eventful are aggregating event information for the masses, makes them searchable and provides RSS and ical feeds so that people can subscribe to them.

But, none of these sites let you subscribe to a feed of events from another source. None of them do for events what bloglines' web based aggregator lets us do for RSS feeds. And there exists no software for events that does what Netgator's desktop based aggregator for RSS. Ideally, someone would build some software that lets a user subscribe to web based ical feeds that integrates with Microsoft's Outlook Calendar. But, I know of no such thing.

Eventful's help section on subscribing to calendars, specifically states that Outlook doesn't let you subscribe to feeds.




So, I went in search of someone that is letting users aggregate event listings from multiple sources. I found a few approaches. The one that behaves most like a typical aggregator was EventSniper. I fed it a few ical feeds from eventful and it aggregated them on a single calendar view. I wouldn't say that Eventsniper is ready for primetime, yet. But, they are certainly on the right track. And as Zvents, Upcoming, Eventful and Google Calendar make more event feeds available, I see the utility of Eventsniper increasing.




While looking around for event aggregators, I found these two other unique approaches: bCal and Geek Event Aggregator. Both look like side hobby projects, but both have some interesting approaches to the whole Personal Event Aggregator Puzzle.