This is one
of my must-have's. The FlickrExport iPhoto plugin has been updated to version 1.3.2. Once you've got this plugin
installed, you can upload photos to your Flickr account (either individually, or in batches) and set their tags,
description, size and more. Version 1.3.2 is mostly a bug fix, but it also extinguishes a problem that was tying up
batch uploads (I was experiencing this issue myself). Plus, it's now universal.
[Via Daring Fireball]