tags and comments

We learned today that while tags are searchable on Picasaweb, comments are not, but while comments can be written by any user, tags can only be written by the image owner. This throws a bit of a wrench into the simplest of our strategies for building an astrophotography collaboration site out of Picasaweb. But we were not daunted. Flickr is a bit better in that it has a defined format for machine tags for building exactly this kind of thing, and image owners can give permission to others to tag their images. Roweis and I wrapped our heads around all this and worked on Astrometry.net's API for interacting with web-based photo-sharing sites.