I travel a lot and I use Tripit.com for all my itineraries. I also use FlightTrack Pro and it syncs all my flights automatically from Tripit. This help me keep me up-to-date with any last minute flight and/or gate changes.
I use Lotus Notes as my email and calendar application on my Mac and I like having all my Tripit itineraries showing up on my Lotus Notes calendar. Today I found that I have to change the URL that Tripit tells me to use from “webcal://” to “https://” and it will work great.
So on the Tripit calendar instructions page under instructions for Lotus Notes, I had to also change the URL from:
webcal://www.tripit.com/feed/ical/private/.../tripit.ics
to
https://www.tripit.com/feed/ical/private/.../tripit.ics