Below are links to some of the websites I have found useful over the years; they are geared towards Four Thirds and Micro Four Thirds cameras.
I have also begun to add links to websites of photographers that have caught my eye as I browse.

Useful links
Photography Websites Photographers Camera Related
ePHOTOzine Ian Cameron - Transient Light Olympus Cameras
Digital Photography Review Bryan Peterson eGroup
Amateur Photographer   Four Thirds User   My Four Thirds
Amateur Photographer   Andrzej Wrotniak
Digital Photography Now   Four Thirds
10% off Zenfolio   43 Rumours

Panasonic Lumix G Cameras

Biofos - Olympus Camaeras

Buying Options   My Images on the Web
Ffordes - Local   My Flickr Images
Amazon   Blipfoto
    All My Photos (this site)