Useful Links

Photography

HDR Spotting - A great site created by Trey Ratcliffe for submitting your HDR photos too
Stuck In Customs - The blog and website of the great HDR Photographer Trey Ratcliffe
Artie's Flickr Photo Stream - The Flickr stream of a great HDR photographer

RC Stuff

RCGroups - If you're into RC you know about this place. It's a hell of a forum.
RCExplorer - An awesome blog by a guy who's more about RC aircraft that someone who know's all about RC aircraft.
FliteTest - A really cool site with loads of RC information and reviews and tutorials.
Stratus Productions - The site of a guy who builds and fly's some very cool RC machines, also does some great reviews.
RCSettings - A page with loads of presets and information about OpenTX

Programming

StackOverflow - An utter cornucopia of user generated programming help
ScotGu - A great blog about .Net web development
Hanselman - A great blog about .Net web envelopment

Travel

Trip Advisor - A great travel review site.