I can't seem to get enough of Mackinac Island, so when I can't be there in person, I often have one of three webcams open on my desktop.
The newest addition to the webcam family is one atop the Chippewa Hotel that allows you to control the camera. It is on the Mackinac Island Chamber of Commerce website, courtesy of boatnerds.com. The link to the webcam is: http://www.mackinacisland.org/webcam.html
There's also the webcam from Horn's Bar:
Lastly, I visit the webcam at The Island House Hotel:
You can also visit the webcams of the Mackinac Bridge at: http://www.mackinacbridge.org/bridge-cam-20/
If you know of other webcams on the island or bridge, please post them here.
Many thanks and best wishes for a wonderful 2009!