One very unique aspect of Radar was that it was a private affair. You shared photos only with the people that you wanted, as opposed to the vast majority of other social photo sharing services, which would put everyone's shots together into one big stream.
Over the years, Radar began to tie into other sites like Facebook and Flickr so that you could browse and post to these places. But with those two sites also offering increasingly extensive privacy controls, the reason for using yet another photo host had most people scratching their heads.
December 15, 2010 4:00 AM PST
Photo by: Josh Lowensohn/CNET
| Caption by: Josh Lowensohn
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