Google Contacts and Calender Synch

http://www.webgear.co.nz/Products/GOContactSync.aspx

http://www.google.com/support/calendar/bin/answer.py?answer=89955

Server Monitoring Tools

http://sixrevisions.com/tools/10-free-server-network-monitoring-tools-that-kick-ass/

http proxy tool

http://portswigger.net/burp/proxy.html