prpro...
I wasn't aware of Yahoo's Intellisync software, and I think
the trend is quickly moving toward charging for these services,
but I did find one free online calendar where you can manually
sync the online calendar to your Outlook Calendar, as in option
(2) of your clarification.
Calendars.net offers a free online calendar:
http://www.calendars.net/
You can customize your calendar using options on this page:
"Change the color of text and backgrounds
Put a background image or texture behind your calendar
Specify font faces and sizes for virtually all elements of
the calendar screen
Add headers and footers to appear on your calendar
Change the month or day headings to another language
Check any add-in lists you want your calendar to display,
such as sets of holidays
Publish your calendar to a one or more static HTML files
Delete entire months of old individual events, making your
calendar load faster"
http://www.calendars.net/calsetup.htm
You can view sample user calendars here:
http://www.calendars.net/cool.htm
And the instructions for manually exchanging data with
Outlook are covered on this page:
http://www.calendars.net/calsetup.htm#outlook
Here is the page where you can upload your Outlook csv file:
http://www.calendars.net/calup.htm
And here's the page where the calendar can be downloaded in
csv format, for integration into Outlook:
http://www.calendars.net/caldown.htm
This is the only one I found that isn't either a free trial
before buying or an established service with a price.
For example, this page on CalendarZone.com lists a bunch of
online calendar services:
http://www.calendarzone.com/Web/
...but the only ones with Outlook synchronization are Connect
Daily, whose prices are quite high:
http://www.mhsoftware.com/priceconnect.html
...and Jump!, whose site is not working.
There's also a slight chance that you might find additional
possibilities in the results from the Google searches
I detailed below.
Please do not rate this answer until you are satisfied that
the answer cannot be improved upon by way of a dialog
established through the "Request for Clarification" process.
sublime1-ga
Searches done, via Google:
software synchronize free "online calendar"
://www.google.com/search?q=software+synchronize+free+%22online+calendar%22
outlook site:www.calendars.net
://www.google.com/search?q=outlook+site%3Awww.calendars.net
software synchronize free "online calendar" outlook
://www.google.com/search?q=software+synchronize+free+%22online+calendar%22+outlook |