An enterprise-class CRM and more!
Vtiger CRM enables sales, support, and marketing teams to organize and collaborate to measurably improve customer experiences and business outcomes. Vtiger CRM also includes email, inventory, project management, and other tools, providing a complete the business management suite. Download Vtiger CRM here or sign up for a free 15-day free trial of the cloud-based application with free updates and support at https://www.vtiger.com/
Add events from SugarCrm (Meetings,Calls,Tasks) to an Google Calendar account ... with SMS alert enabled.
PHP web app to users to convert a Lotus Notes calendar export into a CSV file for import into Outlook.
Simple but Powerful Web PHP Calendar using MySQL database. This web calendar integrates with other sites or stand alone. Designed to provide simple but elegant display for what events are coming up. Look and feel based on "easy phpcalendar".