What are some alternatives?
When comparing silverlinecrm.com CalendarAnything and UpTo, you can also consider the following products
Time.ly - Time.ly is a collaborative calendar solution for websites.
Teamweek - A project management software to help you get the best overview. Plan fast, change plans faster!
Teamup Calendar - Cloud-based calendaring using capability URL, application developed in Zurich, Switzerland.
Tockify - Customizable web calendars that blend into your site
CalendarX - Get a calendar your audience can follow
OfficeCalendar - Share Microsoft Outlook calendar and contact folders