ShareCalendar   
http://www.4team.biz

Share Microsoft Outlook Calendar Folders without any server. Share different Calendar folders with different group of people. Create Group Calendar. "Subscribe" your folders' / subfolders data for your clients. Share Microsoft Outlook Calendars with your own custom forms and imported items. Work offline or online. Labels (colors) sharing in appointments sharing. You can synchronize shared Outlook items with your PDA or Palm device. Synchronize Outlook Calendar data between your desktop PC and laptop. Simple access control. Easy-to-use workgroup application. Start sharing in minutes.

OfficeCalendar for Microsoft Outlook   
http://www.officecalendar.com

Share Microsoft Outlook calendar, contact, and task information with this affordable Exchange alternative. Makes Outlook calendar sharing and Outlook group calendar scheduling easy. Works with Microsoft Outlook 2000, XP, and 2003; and OfficeCalendar provides complete Outlook calendar sharing and group calendar security by allowing you to control exactly who can see and do what with each person's Outlook calendar, and Outlook contacts. OfficeCalendar is easy to use and install; and is a highly effective Outlook calendar share and group calendar application when compared to the complexity and cost associated with Microsoft Exchange Server. Because the OfficeCalendar Outlook calendar share and group calendar application can be setup on either a peer-to-peer network or a non-dedicated pc network server, you won't be required to purchase expensive hardware and consultants to use it. Once setup, OfficeCalendar allows you to see and interact other user's Microsoft Outlook calendar, contact, and task information that is stored in your colleague's Outlook Personal Folders right from within your own copy of Microsoft Outlook. This gives you shared and group calendar software functionality from within the software interface you already know and are familiar with: Outlook. Affordable, effective, and easy-to-use; your office simply can't afford to be without this software. Download our free trial version and test it out on your network today. OfficeCalendar summary: - Share Microsoft Outlook calendar, contact and task information with your co-workers. - Create Outlook Group Calendar for group scheduling. - Provides low-cost alternative to Exchange Server for Outlook calendar sharing. - Comprehensive Outlook shared calendar security so you control what people can see and do. - Works with Outlook 2000, XP and 2003. Free trial available.