Yale official photos are currently available via Flickr and Instagram. Both of these services provide API to access the data.
The official Yale photos provided via Instagram are updated on regular basis. Photos are organized by timeline with latest first.
Data can be accessed via Instagram API available for developers.
Flickr
Official photos of Yale from various events grouped in sets. List of all sets can be seen on Yale University Flickr Albums.
This set of data can be accessed using by Flickr API
Data sets are located at URLs structured in following way:
| Yale University 2011 Baccalaureate | http://www.flickr.com/photos/yaleuniversity/sets/72157626663761813/ |
| Yale University 2011 Class Day | http://www.flickr.com/photos/yaleuniversity/sets/72157626663422237/ |
| Yale-Navy ROTC Signing Ceremony | http://www.flickr.com/photos/yaleuniversity/sets/72157626694562927/ |