Some useful Gadget for Windows 7

SystemMonitor.gadget

http://www.buildagadget.com/

Xirrus Wi-Fi Monitor Gadgets/Widgets (Remark: This Gadget is used a lot of resource, not recommend for Netbook)

http://www.xirrus.com/library/wifitools.php

Govhk Gadgets

http://www.gov.hk/tc/about/helpdesk/gadget/index.htm

Some useful Gadget for Windows 7