Just reviewing the web2.0 calendars available. I feel that we can enhance the existing calendar so the review.
I have reviewed the following as of now :-
upcoming.org: It has a cool invite UI and also the listing of places in a meeting venue UI. Very cool those 2 functions. Rest are ok, not great
planypus.com : The home page itself was not striking enuf for me to login and try
annologger.com : Site is ultra slow and I am yet to make sense of the features in it.
rminder.com : It seems to be a paid service for the US and Canada alone. So did not touch it. Looks good though.
beeplet.com : Had a very cool ui. I think the login page is in Dutch. Does not have many features but cool never the less.
jotlet.com : I am reviewing this now. Will post as soon as I make some progress.