While I was perusing the Flickr camera finder during the last couple days, I was perplexed to note that a number of previously popular models had taken a hit.
The site tracks which cameras are most widely used to upload photos in the last 30 days, but the leading contenders nearly universally got whacked. For example, take a look at the digital SLRs that are leaders with Flickrs' high-upload enthusiasts--the Canon Rebel XT, Pentax K100D, Olympus E-Volt E-500, Nikon D50. They all plunged in terms of the number of photos taken during the last month.
I thought it might be a change in methodology or a server bug, but one chat with a Yahoo representative explained the real reason: the arrival of the Yahoo Photo plebes.
Flickr has long been used by those with higher-end cameras, but Yahoo Photos better reflects the broader marketplace, so when Yahoo started migrating Yahoo Photos users to Flickr or other sites, a lot of lower-end cameras diluted the previous popularity ratings.
It's not clear yet whether this is a blip or a long-term change. Some of the trends appear to be reverting back toward the earlier patterns.